Abies delavay
Illustration by Mary Vaux Walcott. North American Wild Flowers. Washington, 1925.
Pseudotsuga mucronata
Illustration by Mary Vaux Walcott. North American Wild Flowers. Washington, 1925.
Eustoma russelianum
Illustration by Mary Vaux Walcott. North American Wild Flowers. Washington, 1925.
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