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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.
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Provided by USDA Forest Service.
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Provided by USDA Forest Service.
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A.E. Wieslander. Provided by National Agricultural Library. United States, California.
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Provided by National Agricultural Library. United States, California, Monterey Co..
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Provided by National Agricultural Library. United States, California, Monterey Co..
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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.