Bibliography and Citations
Found 12292 results
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Synopsis of the genus Usnea (lichenized Ascomycetes) in British Columbia, Canada. Bryologist. 101:36-60.
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1998. A systematic review of the hydrobiid snails (Gastropoda: Rissooidea) of the Great Basin, western United States. Part I. Genus Pyrgulopsis. Veliger 41. 41(1):1-132. Available from http://ndwr.state.nv.us/hearings/past/springetal/browseabledocs/Exhibits%5CGBWN%20Exhibits/GBWN_Exh_016%20Hershler_Snail%20Report.pdf
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1998. Systematic studies and conservation status of Claytonia lanceolata var. flava (Portulacaceae). Madrono. 45(1):64-74.
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1998. Systematics of North American Petasites (Asteraceae: Senecioneae). I. Morphometric analysis. Canadian Journal of Botany. 76:23-36.
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1998. Systematics of North American Petasites (Asteraceae: Senecioneae). II. Isozyme analysis and population genetic structure. Canadian Journal of Botany. 76:1476-1487.
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1998. Systematics of North American Petasites (Asteraceae: Senecioneae). III. A taxonomic revision. Canadian Journal of Botany. 76:2061-2075.
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1998. Taxonomic novelties from North America North of Mexico: a 20-year vascular plant diversity baseline.
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1998. Threatened and endangered species geography; characteristics of hot spots in the conterminous United States. Bioscience. 48(5):365-376.
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1998. Three hybrid zones between Hermit and Townsend's Warblers in Washington and Oregon. Auk. 115(2):284-310.
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1998. Three new species of Crataegus (Rosaceae) from western North America: C. okennonii, C. okanaganensis and C. phippsii. SIDA, Contributions to Botany. 18:169-191. Available from http://www.jstor.org/stable/41967292
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1998. U. S. National Wetland Inventory classifications as predictors of the occurrence of Columbia spotted frogs (Rana luteiventris) and Pacific treefrogs (Hyla regilla). Conservation Biology. 12(2):320-330. Available from http://onlinelibrary.wiley.com/doi/10.1111/j.1523-1739.1998.97012.x/abstract
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1998. Usefulness and economic potential of the rare plants of the United States: a statistical survey. Economic Botany. 52(1):57-67.
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