Monographs Details: Retiniphyllum scabrum var. erythranthum (Standl.) Steyerm.
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. Sandstone table-mountains of Territorio Federal Amazonas, western Venezuela, at alt. 1300-2000 m. VENEZUELA. Cerro Duida, Tate 561 (holotype of R. erythranthum); Savanna Hills, summit of Cerro Duida, Tate 756 (paratype of R. erythranthum); summit of Cerro Duida, Tate 465 (paratype of R. erythranthum); Cerro Duida, Maguire, Cowan & Wurdack 29598, 29617; summit, Cerro Duida, along valley forest between Central Camp and Brocchinia Hills, Steyermark 58129; southeastern-facing slopes along Cano Negro, Cerro Duida, Steyermark 58034; Serrania Paru, Cowan ds Wurdack 31105, 31147, 31232.

Discussion:R. erythranthum Standi, in Field Mus. Bot. Ser. 7: 399. 1931, type: slopes at Central summit, Cerro Duida, Amazonas, Venezuela, at alt. 1455 m, 28 Dec-1 Jan 1929, G. H. H. Tate 561 (holotype NY).
Distribution:Venezuela South America|