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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                E. P. Bicknell s.n. | 
                                08 Sep 1904 | 
                                United States of America | 
                                Massachusetts | 
                                Nantucket Island. | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                O. R. Willis s.n. | 
                                Oct 1862 | 
                                United States of America | 
                                Massachusetts | 
                                Williams Town | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                F. W. Hunnewell 2728 | 
                                30 May 1914 | 
                                United States of America | 
                                Massachusetts | 
                                Worcester Co. | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                D. C. Eaton 18599 | 
                                s.d. | 
                                United States of America | 
                                Connecticut | 
                                New Haven | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                E. P. Kearsley s.n. | 
                                02 Sep 1946 | 
                                United States of America | 
                                Massachusetts | 
                                Longmeadow | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                L. M. Underwood s.n. | 
                                Aug 1907 | 
                                United States of America | 
                                Massachusetts | 
                                Mt. Washington | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                Collector unknown s.n. | 
                                1831 | 
                                United States of America | 
                                Massachusetts | 
                                Amherst | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                L. M. Underwood s.n. | 
                                Aug 1907 | 
                                United States of America | 
                                Massachusetts | 
                                Mt. Washington | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                A. W. Chapman s.n. | 
                                s.d. | 
                                United States of America | 
                                Massachusetts | 
                                Essex Co. | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                H. Ogden s.n. | 
                                24 Aug 1911 | 
                                United States of America | 
                                Wisconsin | 
                                Waushara Co. Wild Rose | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                M. D. Windham 871 | 
                                19 Aug 1986 | 
                                United States of America | 
                                Michigan | 
                                Alger Co. Near shore of… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                S. McCoy 4875 | 
                                13 Aug 1938 | 
                                United States of America | 
                                Wisconsin | 
                                Sauk Co. Rock Arbor State… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                H. A. Gleason 175 | 
                                s.d. | 
                                United States of America | 
                                Michigan | 
                                Cheboygan Co. At or near… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                M. C. Carlson 23 | 
                                10 Jul 1922 - 31 Jul 1922 | 
                                United States of America | 
                                Wisconsin | 
                                Island, Lake Kawaquesaga, Minocqua | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                C. K. Dodge 179 | 
                                22 Sep 1915 | 
                                United States of America | 
                                Michigan | 
                                near Manistique, School-Craft Co. | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                H. A. Gleason 9626 | 
                                22 Jul 1940 | 
                                United States of America | 
                                Michigan | 
                                Keweenaw Co. Along shore of… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                F. Bartley 52 | 
                                26 Jul 1936 | 
                                United States of America | 
                                Ohio | 
                                Jackson Co. Rock Run. | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                J. J. Copeland s.n. | 
                                01 Sep 1959 | 
                                United States of America | 
                                Wisconsin | 
                                Cedar | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                C. F. Wheeler s.n. | 
                                11 Jul 1895 | 
                                United States of America | 
                                Michigan | 
                                Six miles west of Alpena | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                A. R. Wheeler s.n. | 
                                20 Jul 1881 | 
                                United States of America | 
                                Michigan | 
                                Indian River | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                F. Bartley 920 | 
                                06 Sep 1945 | 
                                United States of America | 
                                Ohio | 
                                Jackson Co. Rock Run, Liberty… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                R. D. Thomas 123,118 | 
                                30 Mar 1991 | 
                                United States of America | 
                                Indiana | 
                                Monroe Co. Along trail from… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                H. Gillman s.n. | 
                                25 Jul 1867 | 
                                United States of America | 
                                Michigan | 
                                Shot Point, Lake Superior | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                H. A. Gleason 175 | 
                                14 Jul 1933 | 
                                United States of America | 
                                Michigan | 
                                Cheboygan Co. Northren end of… | 
                                — | 
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                                    Diphasiastrum tristachyum (Pursh) Holub
                                 | 
                                H. A. Gleason 9751 | 
                                26 Jul 1940 | 
                                United States of America | 
                                Michigan | 
                                Alger Co. Pictured Rocks | 
                                — | 
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