Monographs Details: Retiniphyllum martianum Müll.Arg.
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Family:Rubiaceae
Description:Distribution and Ecology - Distribution. Amazonian Basin, drainage of Rio Negro, Rio Vaupes, Rio Caqueta, of Amazonas, Brazil, Venezuela, and Colombia, south to Departamento Loreto, Peru. VENEZUELA. En la selva, Maroa, Alto Rio Negro, Guainia, Williams 14228 (as to sterile leafy branch), 14192 (as to VEN sheet no. 15965, not sheet no. 15963). COLOMBIA. Amazonas: La Pedrera and vicinity, Cerro de La Pedrera, Rio Caqueta, Schultes d Cabrera 16295. Amazonas-Vaupes: Raudal de Jirijirimo, below mouth of Rio Kananari, Rio Apaporis, Schultes d Cabrera 15930; Raudal Yayacopi (La Playa), Rio Apaporis, Schultes d Cabrera 16923; Cachivera de Jirijirimo, Rio Apaporis, Schultes d Cabrera 12501, 13519, 14059. Vaupes: Puerto Colombia, Rio Guainia, Schultes, Baker & Cahrera 18156; Rio Paca (tributary of Rio Papuri), Wacaricuara and vicinity, Schidtes ds Cabrera 19558; Rio Piraparana (tributary of Rio Apaporis), Cailo Teemeeiia, Schultes & Cabrera 17220; Javarete, caatinga forest, Rio Vaupes, Schultes tO Cabrera 19414. BRAZIL. Prope flumen Japura, Amazonas, Martius (holotype of R. martianum). PERU. Loreto: near Rioja, Weberbauer 4695 (holotype of R. angustiflorum).

Discussion:R. angustiflorum Krause, in Engl. Jahrb. 40: 326. 1908, type near Eioja, Dept. alt. 800-900 m, Weberbauer 4695 (photo and fragment of type from B).
Distribution:Venezuela South America| Colombia South America| Brazil South America| Peru South America|