Studies in the Apocynaceae. IV. The American Genera of Echitoideae
Woodson, Robert E. (Robert Everard), 1904-1963
Article
1935
Annals of the Missouri Botanical Garden
22
153--306
BioStor
English
St. Louis, Missouri Botanical Garden Press, 1914-
BioStor: https://biostor.org/reference/11542 DOI: https://doi.org/10.2307/2394156