BioStor
 | Review of the Order of Hydrophylleæ George Bentham (1835) Transactions of The Linnean Society of London 17: 267-282 |
 | Additions to the flora of Washington and vicinity, from April 1, 1884 to April 1, 1886 F H Knowlton (1886) Proceedings of The Biological Society of Washington 3: 106-132 |
 | Descriptions of New Species of North American Bees Charles Robertson (1891) Transactions of The American Entomological Society 18: 49-66 |
 | 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 |
 | Sixth list of additions to the flora of Washington, D.C. vicinity. With descriptions of new species varieties by Edward L. Greene, Alvah A. Eaton, and the author E S Steele (1901) Proceedings of The Biological Society of Washington 14: 47-86 |
 | Descriptions of new North American Thysanoptera J D Hood (1912) Proceedings of the Entomological Society of Washington 14: 129-160 |
 | District of Columbia Diptera: Syrphidae N Banks, C T Greene et al. (1916) Proceedings of The Biological Society of Washington 29: 173-203 |
 | Cerambycidae from Kartabo, Bartica District, British Guiana (Coleoptera) Samuel Williams (1931) Entomological News, Philadelphia 42: 222-226 |
 | The genera of Hydrophyllaceae and Polemoniaceae in the southeastern United States K A Wilson (1960) Journal of the Arnold Arboretum 41: 197-212 |
 | Systematics of the genus Augochlorella (Hymenoptera, Halictidae) north of Mexico (1966) Kansas University Science Bulletin 46: 509-624 |
 | The Sphegina species of eastern North America (Diptera: Syrphidae) (1977) Proceedings of The Biological Society of Washington 90: 536-552 |
 | FLORA OF THE LEE CREEK VALLEY ALBERTA CANADA R K Shaw (1979) Great Basin Naturalist 39: 277-283 |
 | Indexes to papers 1 to 100 published as parts of the Generic Flora of the Southeastern United States C E Wood (1983) Journal of the Arnold Arboretum 64: 547-563 |
 | A new species of Hydrophyllum from the Ouachita Mountains of Arkansas V Bates and R Kral (1991) Novon 1: 60-66 |