| 
                                    Porphyra perforata f. lanceolata Setch. & Hus
                                 | 
                                H. T. A. de L. Hus s.n. | 
                                Winter 1899 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Fort Point,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Porphyra perforata J.Agardh
                                 | 
                                H. T. A. de L. Hus s.n. | 
                                Winter 1899 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Land's End,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nitophyllum harveyanum J.Agardh
                                 | 
                                W. A. Setchell s.n. | 
                                06 Nov 1896 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Land's End,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Grateloupia versicolor (J.Agardh) J.Agardh
                                 | 
                                W. A. Setchell s.n. | 
                                18 May 1897 | 
                                United States of America | 
                                California | 
                                Monterey Co. Pyramid Point, at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Andersoniella farlowii F.Schmitz
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Porphyra perforata J.Agardh
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Porphyra perforata J.Agardh
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chaetomorpha californica Collins
                                 | 
                                M. S. Snyder s.n. | 
                                May 1898 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                holotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chaetomorpha californica Collins
                                 | 
                                M. S. Snyder s.n. | 
                                May 1898 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Giffordia mitchelliae (Harv.) Hamel
                                 | 
                                M. S. Snyder s.n. | 
                                27 Sep 1898 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Hymenena flabelligera (J.Agardh) Kylin
                                 | 
                                W. A. Setchell s.n. | 
                                06 Nov 1896 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Land's End,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Andersoniella farlowii F.Schmitz
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ectocarpus mitchelliae Harv.
                                 | 
                                M. S. Snyder s.n. | 
                                27 Sep 1898 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Porphyra perforata f. lanceolata Setch. & Hus
                                 | 
                                H. T. A. de L. Hus s.n. | 
                                Winter 1899 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Fort Point,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Porphyra perforata f. segregata Setch. & Hus
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nemalion lubricum Duby
                                 | 
                                S. P. Monks s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                Los Angeles Co. San Pedro | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nitophyllum harveyanum J.Agardh
                                 | 
                                W. A. Setchell s.n. | 
                                06 Nov 1896 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Land's End,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Grateloupia versicolor (J.Agardh) J.Agardh
                                 | 
                                W. A. Setchell s.n. | 
                                18 May 1897 | 
                                United States of America | 
                                California | 
                                Monterey Co. Pyramid Point, at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Giffordia mitchelliae (Harv.) Hamel
                                 | 
                                M. S. Snyder s.n. | 
                                27 Sep 1898 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Chaetomorpha californica Collins
                                 | 
                                M. S. Snyder s.n. | 
                                May 1898 | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhodymenia palmettiformis E.Y.Dawson
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nitophyllum violaceum f. crispulum Setch.
                                 | 
                                W. A. Setchell s.n. | 
                                11 Jan 1899 | 
                                United States of America | 
                                California | 
                                Monterey Co. on stones between… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhodymenia palmettiformis E.Y.Dawson
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhodymenia palmettiformis E.Y.Dawson
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Porphyra perforata J.Agardh
                                 | 
                                H. T. A. de L. Hus s.n. | 
                                Winter 1899 | 
                                United States of America | 
                                California | 
                                San Francisco Co. Land's End,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Helminthocladia purpurea (Harv.) J.Agardh
                                 | 
                                H. D. Johnston s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. San Pedro | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Helminthocladia purpurea (Harv.) J.Agardh
                                 | 
                                H. D. Johnston s.n. | 
                                Jul 1899 | 
                                United States of America | 
                                California | 
                                Los Angeles Co. San Pedro | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nitophyllum violaceum f. crispulum Setch.
                                 | 
                                W. A. Setchell s.n. | 
                                11 Jan 1899 | 
                                United States of America | 
                                California | 
                                Monterey Co. on stones between… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhodymenia palmettiformis E.Y.Dawson
                                 | 
                                M. S. Snyder s.n. | 
                                s.d. | 
                                United States of America | 
                                California | 
                                San Diego Co. La Jolla,… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Oscillatoria tenuis var. tergestina Rabenh. ex Gomont
                                 | 
                                W. A. Setchell | W. J. V. Osterhout s.n. | 
                                28 Mar 1894 | 
                                United States of America | 
                                California | 
                                Alameda Co. in warm water… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Fucus vesiculosus var. spiralis Farl.
                                 | 
                                I. Holden s.n. | 
                                19 Jun 1898 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. on grassy bottom… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Fucus vesiculosus var. spiralis Farl.
                                 | 
                                I. Holden s.n. | 
                                19 Jun 1898 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. on grassy bottom… | 
                                — | 
                                 | 
                                 | 
                                
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stilophora rhizodes f. contorta Holden
                                 | 
                                I. Holden s.n. | 
                                30 May 1897 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Fresh Pond (brackish),… | 
                                probable type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stigeoclonium tenue (Dillwyn) Rabenh.
                                 | 
                                I. Holden s.n. | 
                                14 May 1893 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. on submerged plants… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stilophora rhizodes f. contorta Holden
                                 | 
                                I. Holden s.n. | 
                                30 May 1897 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. Fresh Pond (brackish),… | 
                                probable type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Dictyosiphon foeniculaceus var. americanus Collins
                                 | 
                                I. Holden s.n. | 
                                Apr 1891 | 
                                United States of America | 
                                Connecticut | 
                                Fairfield Co. in marsh pool,… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Schizothrix coriacea (Kütz.) Gomont
                                 | 
                                I. Holden s.n. | 
                                09 Oct 1898 | 
                                United States of America | 
                                Connecticut | 
                                Litchfield Co. near Gaylordsville, shore… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Schizothrix coriacea (Kütz.) Gomont
                                 | 
                                I. Holden s.n. | 
                                23 Apr 1899 | 
                                United States of America | 
                                Connecticut | 
                                Litchfield Co. near Gaylordsville, shore… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Scytonema crispum (C.Agardh) Bornet
                                 | 
                                W. A. Setchell s.n. | 
                                Oct 1891 | 
                                United States of America | 
                                Connecticut | 
                                New Haven Co. forming extensive… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nostoc pruniforme C.Agardh
                                 | 
                                I. Holden s.n. | 
                                25 Aug 1895 | 
                                United States of America | 
                                Connecticut | 
                                Litchfield Co. in a stagnant… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Anadyomene pavonina (J.Agardh) Wille
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Palm Beach Co. Jupiter Inlet,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Callithamnion dasytrichum Mont.
                                 | 
                                G. A. Hall s.n. | 
                                May 1899 | 
                                United States of America | 
                                Florida | 
                                Indian River Inlet | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Vidalia obtusiloba (Mertens ex C.Agardh) J.Agardh
                                 | 
                                G. A. Hall s.n. | 
                                May 1899 - Jun 1899 | 
                                United States of America | 
                                Florida | 
                                Indian River Inlet, washed ashore | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Callithamnion halliae Collins
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Callithamnion halliae Collins
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Callithamnion halliae Collins
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore | 
                                holotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Halodictyon mirabile Zanardini
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Halodictyon mirabile Zanardini
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Halodictyon mirabile Zanardini
                                 | 
                                G. A. Hall s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. washed ashore | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Sargassum filipendula C.Agardh
                                 | 
                                C. Messina s.n. | 
                                s.d. | 
                                United States of America | 
                                Florida | 
                                Monroe Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 |