BioStor
 | Bibliographical notice (1860) Annals And Magazine of Natural History 6: 56-65 |
 | XI.—Notices of British fungi M J Berkeley and C E Broome (1881) Annals And Magazine of Natural History 7: 123-131 |
 | Third Ust of additions to the flora of Washington, D.C T Holm (1892) Proceedings of The Biological Society of Washington 7: 105-132 |
 | Fifth list of additions to the flora of Washington, D.C T Holm (1901) Proceedings of The Biological Society of Washington 14: 7-22 |
 | Seventh supplement to the flora of the District of Columbia and vicinity W L Mcatee (1930) Proceedings of The Biological Society of Washington 43: 21-54 |
 | 1St Flowering Dates For Spring blooming Plants Of The Washington, Dc, Area For The Years 1970 To 1983 S G Shetler and S K Wiser (1987) Proceedings of The Biological Society of Washington 100: 993-1017 |