@article {5292, title = {Revision of the Neotropical genera Bocageopsis, Onychopetalum, and Unonopsis (Annonaceae)}, journal = {BlumeaBlumea}, volume = {52}, year = {2007}, note = {024, 128, 196}, pages = {413-554}, author = {Maas, P. J. M. and L. Y. T.h. Westra and M. Vermeer} }