Monographs Details: Strychnos asperula Sprague & Sandwith
Authority: Krukoff, Boris A. & Barneby, Rupert C. 1969. Supplementary notes on the American species of Strychnos. VIII. Mem. New York Bot. Gard. 20: 1-93, IX. 94-99.
Description:Distribution and Ecology - Brazil: Amazonas: basin of Rio Tonantins, Ducke sn (Jan 31, 1944) (R); Territory of Guapore: between Nova Vida and Rondonia (in forest), Maguire et al. 56779.
Discussion:The first record of the species from the basin of Rio Tonantins and from the Territory of Guapore. These two collections greatly extend the known range of distribution of this species previously known only from two others. Ducke's specimen is from Villa-Velha (margem alagada de Igarape Grande).
Distribution:Brazil South America