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Robert H. Mohlenbrock. USDA NRCS. Provided by USDA NRCS Wetland Science Institute (WSI).
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory.
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W.D. Brush. Provided by National Agricultural Library. United States, District of Columbia, Washington.
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H.S. Graves. Provided by National Agricultural Library. United States, New Jersey.
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Provided by USDA Forest Service.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory.
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W.D. Brush. Provided by National Agricultural Library.
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Y. Harris. Provided by National Agricultural Library.
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Provided by National Agricultural Library. United States, District of Columbia, Washington, LaFayette Park.
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Suzanne Foster. Provided by USDA Forest Service.
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Provided by USDA Forest Service.
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Provided by USDA Forest Service.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection. United States, California, Los Angeles Co., Arcadia, Los Angeles County Arboretum.
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Howard, R.A. Provided by Smithsonian Institution, Richard A. Howard Photograph Collection.
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Provided by USDA Forest Service.
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Steve Hurst. Provided by ARS Systematic Botany and Mycology Laboratory. United States, California.
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John D. Guthrie. Provided by National Agricultural Library. United States, Arizona, Coronado National Forest.
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George D. Russell. Provided by National Agricultural Library. United States, Arizona.
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Provided by National Agricultural Library.
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Provided by USDA Forest Service.
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Provided by USDA Forest Service.
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Provided by USDA Forest Service.
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Provided by USDA Forest Service.
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Provided by USDA Forest Service.