Studies in American plants Gibson, Dorothy N. creator Field Museum of Natural History. contributor text book Chicago, Ill Field Museum of Natural History 1968 1968
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ENG Botany Cobaea Neotropics Wigandia urens var. caracasana QK1 .F4 v.31, no.15 Fieldiana, Botany, v.31, no. 15 https://www.biodiversitylibrary.org/bibliography/42247 Publication (Field Museum of Natural History), 1045 https://www.biodiversitylibrary.org/bibliography/2432 47093373 10.5962/bhl.title.2432 N95