Monographs Details: Ladenbergia lucens Standl.
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. Territorio Federal Amazonas of Venezuelan Guayana. VENEZUELA. Amazonas: Cerro Duida, southeastern-facing sandstone bluffs near Cano Negro (tributary of Caño Iguapo), alt 1095-1520 m, 26 Aug 1944, Steyermark 58023; along north escarpment, Cerro Duida, above Culebra, Río Cunucunuma, alt 1400 m, 20 Nov 1950, Maguire, Cowan & Wurdack 29571; Cerro-Huachamacari, Río Cunucunuma, scrub forest near summit camp, alt 1800 m, 10 Dec 1950, Maguire, Cowan & Wurdack 30087; Cerro Huachamacari, Rio Cunucunuma, along right fork of Cano de Dios, alt 1800 m, 13 Dec 1950, Maguire, Cowan & Wurdack 30181; Cano Guazuriapana, Río Atabapo, near San Fernando de Atabapo, alt 150 m, 16 May 1954, Level 106; Cerro Yapacana, Río Orinoco, alt 600-1000 m, 2 Jan 1951, Maguire, Cowan & Wurdack 30637; Cerro Sipapo (Paraque) in Caño Profundo, alt 1600 m, 12 Jan 1949, Maguire & Politi 28321; Cerro Sipapo (Paraque), on wet cliffs and precipitous east slopes of West Peak, alt 1800 m, 20 Dec 1948, Maguire & Politi 27790; Serranía Parú, in cumbre along west rim just south of camp caño head, alt 2000 m, 2 Feb 1951, Cowan & Wurdack 31152.

Discussion:

Type. Mount Duida, bank of stream at Central Camp, Amazonas, Venezuela, alt 1440 m, 28 Dec 1928-1 Jan 1929, G. H. H. Tate 558 (holotype NY).

Distribution:Venezuela South America|