Studies of American plants I Standley, Paul Carpenter, 1884-1963 creator text book Chicago 1929-1940 1940
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ENG America Botany QK1 .F4 v. 4, no. 8, etc. Publication (Field Museum of Natural History : 1909), 264 0097-5753 ; Publication (Field Museum of Natural History : 1909), Botanical series, v. 4, no. 8 https://www.biodiversitylibrary.org/bibliography/42246 https://www.biodiversitylibrary.org/bibliography/2243 1180908 10.5962/bhl.title.2243