Monographs Details: Inga microcalyx Spruce ex Benth.
Authority: Irwin, Howard S. 1966. Contributions to the botany of Guiana. III. Leguminosae Mimosoideae. Mem. New York Bot. Gard. 15: 96-111.
Description:Distribution and Ecology - BRAZIL. Amapa: Rio Araguari, Pires, Rodrigues & Irvine 50558; Rio Amapari, 51526.A little known species, previously reported only from Santarem, Para (Spruce s.n.), hence entirely new to Guiana.

Distribution:Brazil South America| Guyana South America|