| 
                                    Abies balsamea (L.) Mill.
                                 | 
                                N. C. Fassett 22531 | 
                                26 Aug 1947 | 
                                Canada | 
                                Quebec | 
                                Gaspe County: Mt. Albert, above… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Abies balsamea (L.) Mill.
                                 | 
                                N. C. Fassett 27775 | 
                                26 Aug 1947 | 
                                Canada | 
                                Quebec | 
                                Gaspe County: Mt. Albert, above… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer negundo L.
                                 | 
                                N. C. Fassett 8066 | 
                                15 May 1927 | 
                                United States of America | 
                                Wisconsin | 
                                Dane Co. Paoli | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer nigrum F.Michx.
                                 | 
                                N. C. Fassett 20833 | 
                                05 Oct 1940 | 
                                United States of America | 
                                Illinois | 
                                Ogle Co. White Pine State… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer rubrum L.
                                 | 
                                N. C. Fassett 13497 | 
                                14 Aug 1931 | 
                                United States of America | 
                                Maine | 
                                Lincoln Co. Southfort, woods | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer rubrum L.
                                 | 
                                N. C. Fassett 22250 | 
                                24 Mar 1945 | 
                                United States of America | 
                                Wisconsin | 
                                Dane Co. Wooded hillside, Beech's… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer saccharinum L.
                                 | 
                                N. C. Fassett 22254 | 
                                17 Mar 1945 | 
                                United States of America | 
                                Wisconsin | 
                                Dane Co. Monroe St., opposite… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer spicatum Lam.
                                 | 
                                N. C. Fassett s.n. | 
                                07 Jun 1934 | 
                                United States of America | 
                                Wisconsin | 
                                Ashland Co. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Acer spicatum Lam.
                                 | 
                                N. C. Fassett 3445 | 
                                25 Aug 1926 | 
                                United States of America | 
                                Minnesota | 
                                Wabasha Co. Wooded bluff | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Aconitum columbianum Nutt. subsp. columbianum
                                 | 
                                N. C. Fassett 20290 | 
                                01 Jul 1939 | 
                                United States of America | 
                                Utah | 
                                Sanpete Co. Bank of stream… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Aconitum noveboracense var. quasiciliatum Fassett
                                 | 
                                N. C. Fassett 7610 | 
                                29 Sep 1928 | 
                                United States of America | 
                                Wisconsin | 
                                Sauk Co. Mill Bluff; Lodi… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Adiantum pedatum L.
                                 | 
                                N. C. Fassett 20849 | 
                                12 Jul 1940 | 
                                United States of America | 
                                Maryland | 
                                Allegany Co. Rawlings | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Agalinis purpurea var. parviflora (Benth.) B.Boivin
                                 | 
                                N. C. Fassett 178 | 
                                17 Aug 1921 | 
                                United States of America | 
                                Maine | 
                                Sagadahoc Co. Tidal-flats about Merrymeeting… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Agrostis hyemalis (Walter) Britton, Sterns & Poggenb.
                                 | 
                                N. C. Fassett 8029 | 
                                29 Aug 1928 | 
                                United States of America | 
                                Wisconsin | 
                                Bayfield Co. Island L. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Agrostis stolonifera L.
                                 | 
                                N. C. Fassett 115 | 
                                24 Aug 1921 | 
                                United States of America | 
                                Maine | 
                                Sagadahoc Co. Rocky shore of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Alisma plantago-aquatica var. michaletii Buchenau
                                 | 
                                N. C. Fassett 93 | 
                                25 Aug 1920 | 
                                United States of America | 
                                Maine | 
                                Sagadahoc Co. Tidal-flats about Merrymeeting… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Allium canadense L. var. canadense
                                 | 
                                N. C. Fassett 18047 | 
                                23 Apr 1935 | 
                                United States of America | 
                                Arkansas | 
                                Washington Co. Illinois R. bottoms,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Alopecurus aequalis Sobol.
                                 | 
                                N. C. Fassett 19607 | 
                                20 Jul 1938 | 
                                United States of America | 
                                Wisconsin | 
                                Door Co. Jacksonport. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Alopecurus aequalis Sobol.
                                 | 
                                N. C. Fassett 3066 | 
                                19 Jun 1926 | 
                                United States of America | 
                                Wisconsin | 
                                Dane Co. Sandy shore of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Alopecurus carolinianus Walter
                                 | 
                                N. C. Fassett 2895 | 
                                08 Jun 1926 | 
                                United States of America | 
                                Wisconsin | 
                                Dane Co. opp. Sauk City. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Amorpha canescens Pursh
                                 | 
                                N. C. Fassett 17801 | 
                                27 Aug 1935 | 
                                United States of America | 
                                Wisconsin | 
                                Grant Co. 3 mi. n.w.… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Amorpha canescens Pursh
                                 | 
                                N. C. Fassett 17399 | 
                                25 Aug 1935 | 
                                United States of America | 
                                Wisconsin | 
                                Pierce Co. Hager | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Amorpha fruticosa f. latior Fassett
                                 | 
                                N. C. Fassett 17014 | 
                                02 Aug 1934 | 
                                United States of America | 
                                Wisconsin | 
                                Saint Croix Co. Stony shore… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Amorpha fruticosa L.
                                 | 
                                N. C. Fassett 16744 | 
                                17 Aug 1934 | 
                                United States of America | 
                                Wisconsin | 
                                Rock Co. 4 mi. w.… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Amorpha fruticosa L.
                                 | 
                                N. C. Fassett 16666 | 
                                17 Aug 1934 | 
                                United States of America | 
                                Wisconsin | 
                                Rock Co. 6 mi. w.… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 |