| 
                                    Aphanizomenon flos-aquae (L.) Ralfs
                                 | 
                                F. D. Lambert s.n. | 
                                16 Oct 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. floating on quiet… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Lyngbya aerugineo-caerulea Gomont
                                 | 
                                F. D. Lambert s.n. | 
                                Aug 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. in swamp | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cosmarium subcrenatum
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. among sterile Oedogonium… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cosmarium subcrenatum
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. among sterile Oedogonium… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cosmarium subcrenatum
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. among sterile Oedogonium… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mougeotia laetevirens Wittr.
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. in whitish masses… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mougeotia laetevirens Wittr.
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. in whitish masses… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mougeotia laetevirens Wittr.
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. in whitish masses… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mougeotia macrospora
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. on logs of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mougeotia macrospora
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. on logs of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mougeotia macrospora
                                 | 
                                F. S. Collins s.n. | 
                                16 Sep 1906 | 
                                United States of America | 
                                New Hampshire | 
                                Carroll Co. on logs of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Nitella morongii Allen
                                 | 
                                F. S. Collins s.n. | 
                                23 Aug 1896 | 
                                United States of America | 
                                Massachusetts | 
                                Nantucket Co. in a small… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Punctaria crispata (Kütz.) Trevis.
                                 | 
                                F. S. Collins s.n. | 
                                09 Jul 1906 | 
                                United States of America | 
                                Maine | 
                                Cumberland Co. washed ashore, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Punctaria latifolia f. crispata (Kütz.) Collins
                                 | 
                                F. S. Collins s.n. | 
                                09 Jul 1906 | 
                                United States of America | 
                                Maine | 
                                Cumberland Co. washed ashore, on… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ralfsia clavata f. laminariae Collins
                                 | 
                                F. S. Collins s.n. | 
                                16 Jul 1906 | 
                                United States of America | 
                                Maine | 
                                Cumberland Co. on stipe of… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Zygnema pectinatum f. terrestre (Rabenh.) De Toni
                                 | 
                                F. S. Collins s.n. | 
                                08 Oct 1905 | 
                                United States of America | 
                                Massachusetts | 
                                Middlesex Co. shore of Winchester… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polysiphonia harveyi Bailey
                                 | 
                                F. S. Collins s.n. | 
                                08 Sep 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Plymouth Co. on Zostera, etc. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Polysiphonia harveyi Bailey
                                 | 
                                F. S. Collins s.n. | 
                                08 Sep 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Plymouth Co. on Zostera, etc. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Plectonema terebrans Bornet & Flahault
                                 | 
                                F. S. Collins s.n. | 
                                Jul 1901 | 
                                United States of America | 
                                Maine | 
                                Hancock Co. Cape Rosier, in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Colaconema secundatum (Lyngb.) Woelk.
                                 | 
                                F. S. Collins s.n. | 
                                20 Oct 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Plymouth Co. on Zostera in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Colaconema secundatum (Lyngb.) Woelk.
                                 | 
                                F. S. Collins s.n. | 
                                20 Oct 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Plymouth Co. on Zostera in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Colaconema secundatum (Lyngb.) Woelk.
                                 | 
                                F. S. Collins s.n. | 
                                20 Oct 1906 | 
                                United States of America | 
                                Massachusetts | 
                                Plymouth Co. on Zostera in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhodymenia palmata f. angustifolia Kjellm.
                                 | 
                                F. S. Collins s.n. | 
                                16 Jul 1905 | 
                                United States of America | 
                                Maine | 
                                Hancock Co. Casco Bay, Eagle… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rhodymenia palmata f. angustifolia Kjellm.
                                 | 
                                F. S. Collins s.n. | 
                                16 Jul 1905 | 
                                United States of America | 
                                Maine | 
                                Hancock Co. Casco Bay, Eagle… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Stragularia clavata (Harv.) Hamel
                                 | 
                                F. S. Collins s.n. | 
                                16 Jul 1906 | 
                                United States of America | 
                                Maine | 
                                Cumberland Co. on stipe of… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 |