Studies in American plants
By: Dorothy N. Gibson.
Contributors: Field Museum of Natural History.
Series: Fieldiana -- v.31, no. 15; Publication / Field Museum of Natural History -- 1045
Publisher: Field Museum of Natural History
Published: 1968
Place of publication: Chicago, Ill
Subjects: Wigandia urens var. caracasana.; Cobaea.; Botany -- Neotropics.