Monographs Details: Macrolobium stenopetalum Amshoff
Authority: Maguire, Bassett & Wurdack, John J. 1961. The botany of the Guayana Highland--part IV (2). Mem. New York Bot. Gard. 10: 1-87.
Discussion:Wurdack & Adderley 42849 (unicate), from near San Fernando de Atabapo, is fruiting but it matches very Avell the material of this species, except that the fruit is shorter than in the original description. Since it has been known previously only from Tafelberg in Suriname, this Venezuelan collection represents a considerable extension of range and a new record for Venezuela.