| 
                                    Verrucaria margacea (Wahlenb.) Wahlenb.
                                 | 
                                W. A. Weber L-49852 | 
                                08 Feb 1968 | 
                                Australia | 
                                New South Wales | 
                                Mount Kosciusko State Park, in… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex viridula Michx.
                                 | 
                                W. A. Weber 2495 | 
                                16 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                4 miles north of Athabaska… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Salix glauca L.
                                 | 
                                W. A. Weber 2467 | 
                                13 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                At Bow Summit, between the… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Juncus alpinus Vill.
                                 | 
                                W. A. Weber 2503 | 
                                16 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Along the shore of Leach… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex eleocharis L.H.Bailey
                                 | 
                                W. A. Weber 2295 | 
                                04 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Moraine in the Elk River… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex atrosquama Mack.
                                 | 
                                W. A. Weber 2411 | 
                                12 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Subalpine meadow on steep slope… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex pauciflora Lightf.
                                 | 
                                W. A. Weber 2606 | 
                                02 Aug 1941 | 
                                Canada | 
                                British Columbia | 
                                In a bog 30 mi… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Salix arctica Pall.
                                 | 
                                W. A. Weber 2413 | 
                                12 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                On steep slope of the… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Salix glauca L.
                                 | 
                                W. A. Weber 2262 | 
                                03 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Goat Creek Mt., In the… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex aurea Nutt.
                                 | 
                                W. A. Weber 2493 | 
                                16 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Rocky shore of Leach Lake,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Myosotis scorpioides L.
                                 | 
                                W. A. Weber 2255 | 
                                02 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                In a stream below a… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex leptopoda Mack.
                                 | 
                                W. A. Weber 2533 | 
                                20 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                On the Big Bend of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Ganoderma curtisii (Berk.) Murrill
                                 | 
                                W. A. Weber 967 | 
                                02 Feb 1964 | 
                                Ecuador | 
                                Galápagos | 
                                Indefatigable Is. | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Salix glauca L.
                                 | 
                                W. A. Weber 2474 | 
                                13 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                At Bow Summit, between Mistaya… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex limosa L.
                                 | 
                                W. A. Weber 2464 | 
                                13 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                At Bow Summit, between the… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Juncus torreyi Coville
                                 | 
                                W. A. Weber 2553 | 
                                23 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Swale along the highway, 23… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Salix nivalis Hook.
                                 | 
                                W. A. Weber 2454 | 
                                12 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Summit of Mountain just south… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex lasiocarpa Ehrh.
                                 | 
                                W. A. Weber 2605 | 
                                02 Aug 1941 | 
                                Canada | 
                                British Columbia | 
                                30 miles north of Prince… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Poa interior Rydb.
                                 | 
                                W. A. Weber 2254 | 
                                02 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Burned over woods on a… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex nardina (Hornem.) Fr.
                                 | 
                                W. A. Weber 2438 | 
                                12 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Just south of Peyto Lake,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Riccia mauryana Steph.
                                 | 
                                W. A. Weber s.n. | 
                                19 Apr 1983 - 29 Apr 1983 | 
                                Mexico | 
                                Baja California | 
                                Northeast Anchorage | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex aurea Nutt.
                                 | 
                                W. A. Weber 2457 | 
                                13 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Wet meadow at Bow Summit,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Poa pratensis L.
                                 | 
                                W. A. Weber 2481 | 
                                15 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                2 miles north of Saskatchewan… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Poa interior Rydb.
                                 | 
                                W. A. Weber 2393 | 
                                08 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Burned-over timber in the Elk… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Poa alpina L.
                                 | 
                                W. A. Weber 2478 | 
                                14 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Bow Summit, Banff-Jasper Hwy., 66… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex capillaris L.
                                 | 
                                W. A. Weber 2462 | 
                                13 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Bow Summit, on the Banff-Jasper… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Salix glauca L.
                                 | 
                                W. A. Weber 2261 | 
                                03 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Goat Creek Mt., In the… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex flava L.
                                 | 
                                W. A. Weber 2506 | 
                                19 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                At Lime Creek, near its… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carex scirpoidea Michx.
                                 | 
                                W. A. Weber 2427 | 
                                12 Jul 1941 | 
                                Canada | 
                                Alberta | 
                                Mountain just south of Peyto… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon ousterhoutii Pennell
                                 | 
                                W. A. Weber 17878 | 
                                29 May 1988 | 
                                United States of America | 
                                Colorado | 
                                Montezuma Co. Road to Cross… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Gaura neomexicana subsp. coloradensis (Rydb.) P.H.Raven & D.P.Greg.
                                 | 
                                W. A. Weber 17471 | 
                                22 Sep 1984 | 
                                United States of America | 
                                Colorado | 
                                Boulder Co. Base of outer… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon ambiguus var. laevissimus (D.D.Keck) N.H.Holmgren
                                 | 
                                W. A. Weber 12756 | 
                                09 Jul 1965 | 
                                United States of America | 
                                New Mexico | 
                                Socorro Co. Valley of Rio… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon crandallii subsp. glabrescens (Pennell) D.D.Keck
                                 | 
                                W. A. Weber 12729 | 
                                08 Jul 1965 | 
                                United States of America | 
                                New Mexico | 
                                Taos Co. East slope, outwash… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon degeneri Crosswh.
                                 | 
                                W. A. Weber 13360 | 
                                23 Jul 1967 | 
                                United States of America | 
                                Colorado | 
                                Fremont Co. Ridge of north… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon rostriflorus Kellogg
                                 | 
                                W. A. Weber 18353 | 
                                19 Aug 1991 | 
                                United States of America | 
                                Colorado | 
                                Montezuma Co. Mancos Canyon, Ute… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Cryptantha weberi I.M.Johnst.
                                 | 
                                W. A. Weber 5778 | 
                                28 Jul 1950 | 
                                United States of America | 
                                Colorado | 
                                Saguache Co. Along road to… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon cyanocaulis Payson
                                 | 
                                W. A. Weber 16059 | 
                                30 May 1982 | 
                                United States of America | 
                                Colorado | 
                                Montrose Co. Monogram Mesa, west… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Iva axillaris Pursh
                                 | 
                                W. A. Weber 12688 | 
                                28 Jun 1965 | 
                                United States of America | 
                                Colorado | 
                                Moffat Co. drainage of Thompson… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Rumex salicifolius var. triangulivalvis (Danser) J.C.Hickman
                                 | 
                                W. A. Weber 12687 | 
                                28 Jun 1965 | 
                                United States of America | 
                                Colorado | 
                                Moffat Co. Drainage of Thompson… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Tetradymia spinosa Hook. & Arn. var. spinosa
                                 | 
                                W. A. Weber 12641 | 
                                26 Jun 1965 | 
                                United States of America | 
                                Colorado | 
                                Moffat Co. grassy bench at… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon lyallii A.Gray
                                 | 
                                W. A. Weber 2253 | 
                                02 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                3 miles north of Elko | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon penlandii W.A.Weber
                                 | 
                                W. A. Weber 17830 | 
                                30 Jul 1986 | 
                                United States of America | 
                                Colorado | 
                                Grand Co. Middle Park; 3.8… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon thurberi Torr.
                                 | 
                                W. A. Weber 12770 | 
                                09 Jul 1965 | 
                                United States of America | 
                                New Mexico | 
                                Catron Co. San Augustin Plains,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon moffatii Eastw.
                                 | 
                                W. A. Weber 12339 | 
                                15 May 1965 | 
                                United States of America | 
                                Colorado | 
                                Mesa Co. On east edge… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Erigeron flagellaris f. breviligulatus W.A.Weber
                                 | 
                                W. A. Weber 15355 | 
                                10 Jun 1978 | 
                                United States of America | 
                                Colorado | 
                                Boulder Co. Western slope of… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Pinus flexilis E.James
                                 | 
                                W. A. Weber 17885 | 
                                Jun 1988 | 
                                United States of America | 
                                Colorado | 
                                Rio Grande Co. 10 miles… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Isatis tinctoria L.
                                 | 
                                W. A. Weber 8480 | 
                                27 May 1953 | 
                                United States of America | 
                                Utah | 
                                Box Elder Co. 2 mi.… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon yampaensis Penland
                                 | 
                                W. A. Weber 13060 | 
                                10 Jun 1967 | 
                                United States of America | 
                                Colorado | 
                                Moffat Co. Mouth of Irish… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Mimulus gemmiparus W.A.Weber
                                 | 
                                W. A. Weber 14062 | 
                                08 Jul 1970 | 
                                United States of America | 
                                Colorado | 
                                Larimer Co. Rocky Mountain National… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon cinicola D.D.Keck
                                 | 
                                W. A. Weber 2991 | 
                                17 Jul 1945 | 
                                United States of America | 
                                Oregon | 
                                Deschutes Co. Pringle Falls, near… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Astragalus microcymbus Barneby
                                 | 
                                W. A. Weber 9144 | 
                                09 Jul 1955 | 
                                United States of America | 
                                Colorado | 
                                Gunnison Co. Along main highway… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon cyanocaulis Payson
                                 | 
                                W. A. Weber 11054 | 
                                30 May 1960 | 
                                United States of America | 
                                Colorado | 
                                Montrose Co. West Paradox Creek,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Townsendia annua Beaman
                                 | 
                                W. A. Weber s.n. | 
                                31 May 1960 | 
                                United States of America | 
                                Colorado | 
                                Montrose Co. In center of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon hallii A.Gray
                                 | 
                                W. A. Weber 11083 | 
                                25 Jul 1960 | 
                                United States of America | 
                                Colorado | 
                                Pitkin Co. - Lake Co.… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Schistidium lingulatum ined.
                                 | 
                                W. A. Weber B-111823 | 
                                04 Jul 2001 | 
                                United States of America | 
                                Colorado | 
                                Pitkin Co. Castle Creek, south… | 
                                type | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon strictus Benth.
                                 | 
                                W. A. Weber 16300 | 
                                24 Jun 1982 | 
                                United States of America | 
                                Colorado | 
                                Summit Co. West side of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Atriplex pleiantha W.A.Weber
                                 | 
                                W. A. Weber 4788 | 
                                12 Jun 1949 | 
                                United States of America | 
                                Colorado | 
                                Montezuma Co. Mesa northeast of… | 
                                isotype | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Physaria obcordata Rollins
                                 | 
                                W. A. Weber 17806 | 
                                08 Jul 1986 | 
                                United States of America | 
                                Colorado | 
                                Rio Blanco Co. Piceance Creek… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Penstemon yampaensis Penland
                                 | 
                                W. A. Weber 13139 | 
                                09 Jun 1967 | 
                                United States of America | 
                                Colorado | 
                                Moffat Co. Along road from… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Grayia brandegeei A.Gray var. brandegeei
                                 | 
                                W. A. Weber 16374 | 
                                26 Aug 1982 | 
                                United States of America | 
                                Colorado | 
                                Mesa Co. East end of… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Grayia brandegeei A.Gray var. brandegeei
                                 | 
                                W. A. Weber 13975 | 
                                15 May 1969 | 
                                United States of America | 
                                Colorado | 
                                Mesa Co. DeBeque | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Grayia brandegeei A.Gray var. brandegeei
                                 | 
                                W. A. Weber 13975 | 
                                15 May 1969 | 
                                United States of America | 
                                Colorado | 
                                Mesa Co. DeBeque | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Carduus nutans subsp. leiophyllus (Petrovic) Stoj. & Stef.
                                 | 
                                W. A. Weber 12177 | 
                                09 Aug 1964 | 
                                United States of America | 
                                Colorado | 
                                Boulder Co. Upper Boulder Canyon… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Juniperus scopulorum Sarg.
                                 | 
                                W. A. Weber 12869 | 
                                12 Jul 1965 | 
                                United States of America | 
                                New Mexico | 
                                Grant Co. Above Sapillo Creek;… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
                                                                  | 
                                
                                    
                                 | 
                            
                       
                        
                            
                            
                                | 
                                    Astragalus linifolius Osterh.
                                 | 
                                W. A. Weber 15307 | 
                                15 May 1978 | 
                                United States of America | 
                                Colorado | 
                                Delta Co. Escalante Canyon road… | 
                                — | 
                                 | 
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                                | 
                                    Astragalus linifolius Osterh.
                                 | 
                                W. A. Weber 15307 | 
                                15 May 1978 | 
                                United States of America | 
                                Colorado | 
                                Delta Co. Escalante Canyon road… | 
                                — | 
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                                | 
                                    Astragalus molybdenus Barneby
                                 | 
                                W. A. Weber 9182 | 
                                14 Jul 1955 | 
                                United States of America | 
                                Colorado | 
                                Gunnison Co. North Pole Basin,… | 
                                — | 
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                                | 
                                    Grayia brandegeei var. plummeri Stutz & S.C.Sand.
                                 | 
                                W. A. Weber 16369 | 
                                26 Aug 1982 | 
                                United States of America | 
                                Colorado | 
                                Garfield Co. Parachute Creek, about… | 
                                — | 
                                 | 
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                                | 
                                    Ribes inerme f. incisum W.A.Weber
                                 | 
                                W. A. Weber 12916a | 
                                18 Jul 1965 | 
                                United States of America | 
                                Colorado | 
                                Boulder Co. Summit of Sugarloaf… | 
                                isotype | 
                                 | 
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                                | 
                                    Penstemon rydbergii var. oreocharis (Greene) N.H.Holmgren
                                 | 
                                W. A. Weber 2897 | 
                                26 Jun 1945 | 
                                United States of America | 
                                Oregon | 
                                Wheeler Co. Along Crystal Creek,… | 
                                — | 
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                                | 
                                    Juniperus horizontalis Moench
                                 | 
                                W. A. Weber 2395 | 
                                09 Jul 1941 | 
                                Canada | 
                                British Columbia | 
                                Kootenay. Bank of the Kootenary… | 
                                — | 
                                 | 
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                                | 
                                    Penstemon lentus Pennell var. lentus
                                 | 
                                W. A. Weber 16025 | 
                                29 May 1982 | 
                                United States of America | 
                                Colorado | 
                                San Miguel Co. Norwood Canyon… | 
                                — | 
                                 | 
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                                | 
                                    Erigeron peregrinus (Pursh) Greene subsp. peregrinus var. peregrinus
                                 | 
                                W. A. Weber 11082 | 
                                26 Jul 1960 | 
                                United States of America | 
                                Colorado | 
                                Pitkin Co. Roaring Fork River,… | 
                                — | 
                                 | 
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                                | 
                                    Erigeron coulteri Porter
                                 | 
                                W. A. Weber 11081 | 
                                26 Jul 1960 | 
                                United States of America | 
                                Colorado | 
                                Pitkin Co. Roaring Fork River,… | 
                                — | 
                                 | 
                                 | 
                                
                                                                      
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                                | 
                                    Vaccinium cespitosum Michx.
                                 | 
                                W. A. Weber 12884 | 
                                14 Jul 1965 | 
                                United States of America | 
                                Colorado | 
                                Conejos Co. southwest of summit… | 
                                — | 
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