Bibliography and Citations
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Notes on the fan-leaflet group of moonworts in North America with descriptions of two new members. American Fern Journal. 80(3):73-81.
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1990. Pinus ponderosa Dougl. ex Laws. Ponderosa pine. Silvics of North America. Volume 1. Conifers. Burns RM, Honkala BH, editors. Washington (DC): U. S. Forest Service. Available from http://na.fs.fed.us/spfo/pubs/silvics_manual/Volume_1/pinus/ponderosa.htm
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1990. Plumage, morphometric, and song variation in mourning (OPORORNIS PHILADELPHIA) and MacGillivray's (O. TOLMIEI) warblers. Auk. 107:161-171.
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1990. Population and habitat characteristics of lynx and snowshoe hares in north central Washington. Canadian Journal of Zoology. 68:845-851.
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1990. Population viability analysis for an endangered plant. Conservation Biology. 4(1):52-62.
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1990. Pregermination treatment and stratification of silverberry seed. Tree Planter's Notes. 41(1):24-25.
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1990. Preserving research natural areas. Forestry Research West. (December):10-16.
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1990. Protecting endangered plants. Agricultural Research. May:16-18.
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1990. Pyrgulopsis bruneauensis, a new springsnail (Gastropoda: Hydrobiidae) from the Snake River plain, southern Idaho. Proceedings of the Biological Society of Washington. 103((4)):803-814.
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1990. Rapid estimation of abundance of epiphytes on branches. Bryologist. 93(1):39-43.
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