Monographs Details: Aspidosperma decussatum subsp. jauaensis Steyerm.
Authority: Steyermark, Julian A. & Maguire, Bassett. 1972. The flora of the Meseta del Cerro Jáua. Mem. New York Bot. Gard. 23: 833-892.
Family:Apocynaceae
Description:Latin Diagnosis - A subsp decussatum laminis subtus costa media paginaque glabra vel fere glabra recedit.

Discussion:

In A. decussatum subsp decussatum of the Venezuelan Guayana, from Ptari-tepuí, and Caroni-Cuyuni drainage, the lower surface and lower midrib of the leaves are abundantly puberulent. In subsp jauaensis this puberulence disappears from all or most of the lower side, at most with some minute sparse puberulence showing.