Monographs Details: Psychotria obliquinervia Müll.Arg.
Authority: Maguire, Bassett. 1972. The botany of the Guayana Highland--part IX. Mem. New York Bot. Gard. 23: 1-832.
Family:Rubiaceae
Description:Distribution and Ecology - Distribution. Amazonian Brazil and Colombia. BRAZIL. Amazonas: Manaos, alt 25 m, 17 Oct 1929, Killip & Smith 30173. COLOMBIA. Vaupés: Río Kananari y Cerro Isibukuri, cerca del río, en la cumbre del cerro, suelo Pedregoso de arenisca, alt 250-750 m, 29-30 Nov 1951, Garcia Barriga 13824. Amazonas-Vaupés: Río Apaporis, entre los rios Kananarí y Pacoa, alt 250 m, 1-15 Dec 1951, Garcia Barriga 13910.

Discussion:

Type. Ad ostium flum. Madeira, Prov Rio Negro, Amazonas, Brazil, Martius.

This taxon resembles P. loretensis Standi, but the exterior of the corolla is densely tomentellose, the lateral axes of the inflorescence are twice dichotomously branched, and the lateral nerves of the leaf blades do not end directly in the marginal nerves but anastomose about 1-3 mm from the margin. From P. cincta Standi, it differs in the flowers scattered along the ultimate forks of the inflorescence, the more numerously-flowered axes, and the lateral nerves anastomosing before reaching the margin. From P. deflexa subsp campyloneura it is differentiated by the twice dichotomously branched lower axes of the inflorescence and by the pubescent exterior of the corolla.

Distribution:Brazil South America| Colombia South America|