| 
                                    Desmarestia aculeata f. media (C.Agardh) J.Agardh
                                 | 
                                A. A. Lawson s.n. | 
                                Jun 1899 - Aug 1899 | 
                                United States of America | 
                                Alaska | 
                                Unalaska, cast ashore in entangled… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Desmarestia aculeata f. media (C.Agardh) J.Agardh
                                 | 
                                A. A. Lawson s.n. | 
                                Jun 1899 - Aug 1899 | 
                                United States of America | 
                                Alaska | 
                                Unalaska, cast ashore in entangled… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chordaria flagelliformis (O.F.Müll.) C.Agardh
                                 | 
                                A. A. Lawson s.n. | 
                                Jun 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chordaria flagelliformis (O.F.Müll.) C.Agardh
                                 | 
                                A. A. Lawson s.n. | 
                                Jun 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Turnerella mertensiana (Postels & Rupr.) F.Schmitz
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                s.d. | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Bay… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Turnerella mertensiana (Postels & Rupr.) F.Schmitz
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                s.d. | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Bay… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix aequalis Kütz.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix tenuissima Kütz.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix zonata (F.Weber & D.Mohr) Kütz.
                                 | 
                                W. A. Setchell s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ectocarpus siliculosus (Dillwyn) Lyngb.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                Jun 1899 - Aug 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ectocarpus siliculosus (Dillwyn) Lyngb.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                Jun 1899 - Aug 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Desmarestia aculeata f. media (C.Agardh) J.Agardh
                                 | 
                                A. A. Lawson s.n. | 
                                Jun 1899 - Aug 1899 | 
                                United States of America | 
                                Alaska | 
                                Unalaska, cast ashore in entangled… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chordaria flagelliformis f. typica Kjellm.
                                 | 
                                A. A. Lawson s.n. | 
                                Jun 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Sarcophyllis arctica Kjellm.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                s.d. | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Bay… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix tenuissima Kütz.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix zonata (F.Weber & D.Mohr) Kütz.
                                 | 
                                W. A. Setchell s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ectocarpus terminalis Kütz.
                                 | 
                                W. A. Setchell | A. A. Lawson s.n. | 
                                Jun 1899 - Aug 1899 | 
                                United States of America | 
                                Alaska | 
                                Aleutians West Census Area. Unalaska,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Microspora tumidula Hazen
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Warm Sulphur Springs, in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Microspora tumidula Hazen
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Warm Sulphur Springs, in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Microspora tumidula Hazen
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Warm Sulphur Springs, in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Microspora tumidula Hazen
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Warm Sulphur Springs, in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Phormidium treleasei Gomont
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Hot Sulphur Springs | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Scytonema mirabile var. leprieurii Kütz.
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                19 Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Warm Sulphur Springs | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Phormidium tenue Gomont
                                 | 
                                E. Butler | J. M. Polley s.n. | 
                                Jun 1901 | 
                                Canada | 
                                Alberta | 
                                Banff. Hot Sulphur Springs | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stichococcus bacillaris Nägeli
                                 | 
                                W. J. V. Osterhout s.n. | 
                                08 Jun 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in shade, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stichococcus bacillaris Nägeli
                                 | 
                                W. J. V. Osterhout s.n. | 
                                08 Jun 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in shade, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix subtilis Kütz.
                                 | 
                                W. J. V. Osterhout s.n. | 
                                02 Jun 1902 | 
                                United States of America | 
                                California | 
                                Farralone Islands, in fresh water… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix subtilis Kütz.
                                 | 
                                W. J. V. Osterhout s.n. | 
                                02 Jun 1902 | 
                                United States of America | 
                                California | 
                                Farralone Islands, in fresh water… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chantransia corymbifera Thur.
                                 | 
                                H. D. Johnston s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Los Angeles Co. on Helminthocladia… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chantransia corymbifera Thur.
                                 | 
                                H. D. Johnston s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Los Angeles Co. on Helminthocladia… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Corallina ungulata Yendo
                                 | 
                                M. S. Snyder s.n. | 
                                05 Apr 1902 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Spirogyra orbicularis
                                 | 
                                N. L. Gardner s.n. | 
                                01 Oct 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in a stream | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Spirogyra orbicularis
                                 | 
                                N. L. Gardner s.n. | 
                                01 Oct 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in a stream | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Peyssonneliopsis epiphytica Setch. & G.W.Lawson
                                 | 
                                J. M. Weeks s.n. | 
                                1896 - 1897 | 
                                United States of America | 
                                California | 
                                Monterey Co. washed ashore at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Peyssonneliopsis epiphytica Setch. & G.W.Lawson
                                 | 
                                J. M. Weeks s.n. | 
                                1896 - 1897 | 
                                United States of America | 
                                California | 
                                Monterey Co. washed ashore at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Corallina ungulata Yendo
                                 | 
                                M. S. Snyder s.n. | 
                                05 Apr 1902 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Oscillatoria chalybea var. genuina Gomont
                                 | 
                                W. J. V. Osterhout | N. L. Gardner s.n. | 
                                28 Jun 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. Lake Chabot | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stichococcus bacillaris Nägeli
                                 | 
                                W. J. V. Osterhout s.n. | 
                                08 Jun 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in shade, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ulothrix variabilis Kütz.
                                 | 
                                W. J. V. Osterhout s.n. | 
                                02 Jun 1902 | 
                                United States of America | 
                                California | 
                                Farralone Islands, in fresh water… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chantransia corymbifera Thur.
                                 | 
                                H. D. Johnston s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Los Angeles Co. on Helminthocladia… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Peyssonneliopsis epiphytica Setch. & G.W.Lawson
                                 | 
                                J. M. Weeks s.n. | 
                                1896 - 1897 | 
                                United States of America | 
                                California | 
                                Monterey Co. washed ashore at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Corallina ungulata Yendo
                                 | 
                                M. S. Snyder s.n. | 
                                05 Apr 1902 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Spirogyra orbicularis
                                 | 
                                N. L. Gardner s.n. | 
                                01 Oct 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in a stream | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Symploca muscorum (C.Agardh) Gomont
                                 | 
                                N. L. Gardner s.n. | 
                                Jul 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. Mount View Cemetery,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Microcoleus vaginatus (Vaucher) Gomont
                                 | 
                                N. L. Gardner s.n. | 
                                20 Feb 1902 | 
                                United States of America | 
                                California | 
                                Alameda Co. in a gutter,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cladophora pulverulenta (Mertens) H.K.Phinney
                                 | 
                                I. Holden s.n. | 
                                07 Sep 1901 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Fresh Pond (brackish) | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cladophora pulverulenta (Mertens) H.K.Phinney
                                 | 
                                I. Holden s.n. | 
                                07 Sep 1901 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Fresh Pond (brackish) | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Closterium ehrenbergii Menegh. ex Ralfs
                                 | 
                                W. A. Setchell | I. Holden s.n. | 
                                28 Oct 1892 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Bridgeport | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Closterium ehrenbergii Menegh. ex Ralfs
                                 | 
                                W. A. Setchell | I. Holden s.n. | 
                                28 Oct 1892 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Bridgeport | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cladophora expansa var. glomerata Thur. ex Collins
                                 | 
                                I. Holden s.n. | 
                                07 Sep 1901 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Fresh Pond (brackish) | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Closterium ehrenbergii var. immane Wolle
                                 | 
                                W. A. Setchell | I. Holden s.n. | 
                                28 Oct 1892 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Bridgeport | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia tenella (C.Agardh) Ambronn
                                 | 
                                G. A. Hall s.n. | 
                                20 Jul 1896 | 
                                United States of America | 
                                Florida | 
                                Saint Johns Co. Anastasia Island,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polysiphonia havanensis Mont.
                                 | 
                                M. A. Howe s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. just above low… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polysiphonia havanensis Mont.
                                 | 
                                M. A. Howe s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. just above low… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acetabularia farlowii Solms
                                 | 
                                M. A. Howe s.n. | 
                                11 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on shells, stones,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acetabularia farlowii Solms
                                 | 
                                M. A. Howe s.n. | 
                                11 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on shells, stones,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Siphonocladus rigidus (M.Howe) M.Howe
                                 | 
                                M. A. Howe 1597 | 
                                30 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on somewhat sandy… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Siphonocladus rigidus (M.Howe) M.Howe
                                 | 
                                M. A. Howe 1597 | 
                                30 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on somewhat sandy… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia pecten-veneris (Harv.) Falkenb.
                                 | 
                                M. A. Howe s.n. | 
                                07 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. usually floating at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia pecten-veneris (Harv.) Falkenb.
                                 | 
                                M. A. Howe s.n. | 
                                07 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. usually floating at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia secunda (C.Agardh) Ambronn
                                 | 
                                M. A. Howe s.n. | 
                                01 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhipocephalus phoenix (J.Ellis & Sol.) Kütz.
                                 | 
                                M. A. Howe s.n. | 
                                06 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on sandy bottom… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Martensia pavonia (J.Agardh) J.Agardh
                                 | 
                                M. A. Howe s.n. | 
                                13 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Palm Beach Co. Jupiter Inlet,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Martensia pavonia (J.Agardh) J.Agardh
                                 | 
                                M. A. Howe s.n. | 
                                13 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Palm Beach Co. Jupiter Inlet,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polysiphonia havanensis Mont.
                                 | 
                                M. A. Howe s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. just above low… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acetabularia farlowii Solms
                                 | 
                                M. A. Howe s.n. | 
                                11 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on shells, stones,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia secunda (C.Agardh) Ambronn
                                 | 
                                M. A. Howe s.n. | 
                                01 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Martensia pavonia (J.Agardh) J.Agardh
                                 | 
                                M. A. Howe s.n. | 
                                13 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Palm Beach Co. Jupiter Inlet,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia tenella (C.Agardh) Ambronn
                                 | 
                                G. A. Hall s.n. | 
                                20 Jul 1896 | 
                                United States of America | 
                                Florida | 
                                Saint Johns Co. Anastasia Island,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Herposiphonia pecten-veneris (Harv.) Falkenb.
                                 | 
                                M. A. Howe s.n. | 
                                07 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. usually floating at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhipocephalus phoenix (J.Ellis & Sol.) Kütz.
                                 | 
                                M. A. Howe s.n. | 
                                06 Nov 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on sandy bottom… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Siphonocladus rigidus (M.Howe) M.Howe
                                 | 
                                M. A. Howe 1597 | 
                                30 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on somewhat sandy… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polythrix corymbosa (Harv.) Grunow ex Bornet & Flahault
                                 | 
                                M. A. Howe s.n. | 
                                30 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. on rocks just… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rivularia polyotis (J.Agardh) Hauck
                                 | 
                                M. A. Howe s.n. | 
                                30 Oct 1902 | 
                                United States of America | 
                                Florida | 
                                Monroe Co. just above low… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lyngbya lagerheimii Gomont
                                 | 
                                F. S. Collins s.n. | 
                                18 Jul 1901 | 
                                United States of America | 
                                Maine | 
                                Lincoln Co. Pemaquid Point, forming… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 |