| 
                                    Mentha arvensis L. var. arvensis
                                 | 
                                A. J. McCosh s.n. | 
                                Jul 1878 - Aug 1878 | 
                                United States of America | 
                                Wyoming | 
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                                — | 
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                                    Gaura coccinea Pursh
                                 | 
                                A. J. McCosh s.n. | 
                                28 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Plains, 50 m. S. of… | 
                                — | 
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                                    Lupinus argenteus var. argenteus
                                 | 
                                A. J. McCosh s.n. | 
                                28 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Denver Co. Near Denver, plains. | 
                                — | 
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                                    Lupinus argenteus var. argenteus
                                 | 
                                A. J. McCosh s.n. | 
                                28 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Denver Co. Plains near Denver. | 
                                — | 
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                                    Helianthus petiolaris var. petiolaris
                                 | 
                                A. J. McCosh s.n. | 
                                28 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Denver Co. | 
                                — | 
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                                    Thelesperma filifolium var. intermedium (Rydb.) Shinners
                                 | 
                                A. J. McCosh s.n. | 
                                28 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Castle Rock | 
                                — | 
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                                    Thelesperma filifolium var. intermedium (Rydb.) Shinners
                                 | 
                                A. J. McCosh s.n. | 
                                28 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Douglas Co. | 
                                — | 
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                                    Aristida purpurea Nutt.
                                 | 
                                A. J. McCosh s.n. | 
                                29 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Van Werner's Ranch, 20 mi… | 
                                — | 
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                                    Hesperostipa spartea (Trin.) Barkworth
                                 | 
                                A. J. McCosh s.n. | 
                                29 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Near Severvan's, [?] mi S… | 
                                — | 
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                                | 
                                    Eriogonum effusum Nutt.
                                 | 
                                A. J. McCosh s.n. | 
                                29 Jun 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                | 
                                    Eriogonum effusum Nutt. var. effusum
                                 | 
                                A. J. McCosh s.n. | 
                                29 Jun 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                | 
                                    Eriogonum effusum Nutt. var. effusum
                                 | 
                                A. J. McCosh s.n. | 
                                29 Jun 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                    Calochortus gunnisonii S.Watson
                                 | 
                                A. J. McCosh s.n. | 
                                30 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                30 mi S of Denver | 
                                — | 
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                                    Potentilla fissa Nutt. ex Torr. & A.Gray
                                 | 
                                A. J. McCosh s.n. | 
                                30 Jun 1877 | 
                                United States of America | 
                                Colorado | 
                                Divide of La Platte R. | 
                                — | 
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                                    Calylophus serrulatus (Nutt.) P.H.Raven
                                 | 
                                A. J. McCosh s.n. | 
                                30 Jun 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                    Calylophus serrulatus (Nutt.) P.H.Raven
                                 | 
                                A. J. McCosh s.n. | 
                                30 Jun 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                    Picea pungens Engelm.
                                 | 
                                A. J. McCosh s.n. | 
                                Jul 1877 | 
                                United States of America | 
                                Colorado | 
                                Ute Pass, west side | 
                                — | 
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                                | 
                                    Abies concolor (Gordon) Lindl. ex Hildebr.
                                 | 
                                A. J. McCosh s.n. | 
                                Jul 1877 | 
                                United States of America | 
                                Colorado | 
                                Ute Pass, west side | 
                                — | 
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                                | 
                                    Dalea candida var. oligophylla (Torr.) Shinners
                                 | 
                                A. J. McCosh s.n. | 
                                01 Jul 1877 | 
                                United States of America | 
                                Colorado | 
                                Plains near Denver | 
                                — | 
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                                | 
                                    Dalea candida var. oligophylla (Torr.) Shinners
                                 | 
                                A. J. McCosh s.n. | 
                                01 Jul 1877 | 
                                United States of America | 
                                Colorado | 
                                Plains near Denver | 
                                — | 
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                                | 
                                    Agoseris x agrestis Osterh.
                                 | 
                                A. J. McCosh s.n. | 
                                July- August 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                | 
                                    Agoseris x agrestis Osterh.
                                 | 
                                A. J. McCosh s.n. | 
                                July - Aug. 1877 | 
                                United States of America | 
                                Colorado | 
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                                — | 
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                                | 
                                    Arnica mollis Hook.
                                 | 
                                A. J. McCosh s.n. | 
                                July-Aug. 1877 | 
                                United States of America | 
                                — | 
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                                — | 
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                                | 
                                    Cirsium flodmanii (Rydb.) Arthur
                                 | 
                                A. J. McCosh s.n. | 
                                "July-Aug 1877" | 
                                United States of America | 
                                New Jersey | 
                                Princeton | 
                                — | 
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                                | 
                                    Erigeron lonchophyllus Hook.
                                 | 
                                A. J. McCosh  | 
                                Jul - Aug 1877 | 
                                United States of America | 
                                Wyoming | 
                                Black's Park | 
                                — | 
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