| 
                                    Trifolium andinum Nutt. var. andinum
                                 | 
                                E. B. Payson 2608 | 
                                9 Jul 1922 | 
                                United States of America | 
                                Wyoming | 
                                Sublette Co. 20 miles west… | 
                                — | 
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                                    Viola nephrophylla Greene
                                 | 
                                E. B. Payson 1715 | 
                                18 Jun 1920 | 
                                United States of America | 
                                Idaho | 
                                Bannock Co. Soda Springs. | 
                                — | 
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                                    Draba apiculata C.L.Hitchc.
                                 | 
                                E. B. Payson 5048 | 
                                19 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Stillwater Fork; La… | 
                                holotype | 
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                                    Aquilegia coerulea var. ochroleuca Hook.
                                 | 
                                E. B. Payson 5144 | 
                                29 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Stillwater Fork, Uintah… | 
                                — | 
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                                    Penstemon deustus Douglas ex Lindl. var. deustus
                                 | 
                                E. B. Payson 2067 | 
                                22 Jul 1920 | 
                                United States of America | 
                                Wyoming | 
                                Teton Pass Mountains, east of… | 
                                — | 
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                                    Vaccinium uliginosum L.
                                 | 
                                E. B. Payson 4993 | 
                                26 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Around lake east… | 
                                — | 
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                                    Arctostaphylos patula Greene
                                 | 
                                E. B. Payson 4975 | 
                                15 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Stillwater Fork Uintah… | 
                                — | 
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                                    Salix nivalis Hook.
                                 | 
                                E. B. Payson 5100 | 
                                24 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. La Motte Peak,… | 
                                — | 
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                                | 
                                    Eriogonum ovalifolium var. depressum Blank.
                                 | 
                                E. B. Payson 2282 | 
                                13 Aug 1920 | 
                                United States of America | 
                                Wyoming | 
                                Lincoln Co. Jackson's Hole. Tetons. | 
                                — | 
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                                | 
                                    Delphinium glaucum S.Watson
                                 | 
                                E. B. Payson 2966 | 
                                07 Aug 1922 | 
                                United States of America | 
                                Wyoming | 
                                Sublette Co. Saltlick Mountain, northeast… | 
                                — | 
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                                | 
                                    Cerastium beeringianum Cham. & Schltdl.
                                 | 
                                E. B. Payson 2960 | 
                                07 Aug 1922 | 
                                United States of America | 
                                Wyoming | 
                                Sublette Co. Saltlick Mountain, northeast… | 
                                — | 
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                                    Cerastium beeringianum Cham. & Schltdl.
                                 | 
                                E. B. Payson 5040 | 
                                19 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Grassy slopes of… | 
                                — | 
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                                    Alyssum alyssoides (L.) L.
                                 | 
                                E. B. Payson 2160 | 
                                26 Jul 1920 | 
                                United States of America | 
                                Idaho | 
                                Teton Co. | 
                                — | 
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                                    Penstemon cleburnei M.E.Jones
                                 | 
                                E. B. Payson 1691 | 
                                17 Jun 1920 | 
                                United States of America | 
                                Wyoming | 
                                Carbon Co. Hanna | 
                                — | 
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                                | 
                                    Parrya rydbergii Botsch.
                                 | 
                                E. B. Payson 5027 | 
                                19 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. La Motte Peak,… | 
                                — | 
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                                    Primula parryi A.Gray
                                 | 
                                E. B. Payson 5003 | 
                                27 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Slopes of La… | 
                                — | 
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                                    Penstemon cyathophorus Rydb.
                                 | 
                                E. B. Payson 2510 | 
                                30 Jun 1922 | 
                                United States of America | 
                                Wyoming | 
                                Carbon Co. Big Creek, road… | 
                                — | 
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                                    Delphinium nuttallianum Pritz.
                                 | 
                                E. B. Payson 1717 | 
                                18 Jun 1920 | 
                                United States of America | 
                                Idaho | 
                                Bannock Co. Soda Springs | 
                                — | 
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                                    Delphinium nuttallianum Pritz.
                                 | 
                                E. B. Payson 2142 | 
                                25 Jul 1920 | 
                                United States of America | 
                                Wyoming | 
                                Teton Pass Mountains, east of… | 
                                — | 
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                                    Penstemon subglaber Rydb.
                                 | 
                                E. B. Payson 5056 | 
                                21 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Upper Stillwater fork… | 
                                — | 
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                                    Penstemon subglaber Rydb.
                                 | 
                                E. B. Payson 2745 | 
                                17 Jul 1922 | 
                                United States of America | 
                                Wyoming | 
                                Sublette Co. Horse Creek, 7… | 
                                — | 
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                                    Penstemon subglaber Rydb.
                                 | 
                                E. B. Payson 2995 | 
                                07 Aug 1922 | 
                                United States of America | 
                                Wyoming | 
                                Sublette Co. Saltlick Mountain, northeast… | 
                                — | 
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                                    Penstemon subglaber Rydb.
                                 | 
                                E. B. Payson 4820 | 
                                30 Jun 1926 | 
                                United States of America | 
                                Wyoming | 
                                Uinta Co. Near Bear River | 
                                — | 
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                                | 
                                    Tetradymia glabrata f. calva Payson
                                 | 
                                E. B. Payson 1878 | 
                                03 Jul 1920 | 
                                United States of America | 
                                Idaho | 
                                Lemhi Co. Salmon | 
                                isotype | 
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                                | 
                                    Dodecatheon alpinum (A.Gray) Greene
                                 | 
                                E. B. Payson 5013 | 
                                17 Jul 1926 | 
                                United States of America | 
                                Utah | 
                                Summit Co. Ridge east of… | 
                                — | 
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