Monographs Details: Remijia hispida Spruce ex K.Schum.
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. Drainage of the Siapo, Yatua, Casiquiare, and Upper Orinoco rivers of Amazonas, Venezuela, and of the Río Vaupés, Colombia. VENEZUELA. Amazonas: granite laja on right bank, 8 km below Raudal Gallineta, Río Siapa, alt 130-300 m, 20 July 1959, Wurdack & Adderley 43511; Piedra Arauicaua, Río Yatua, Casiquiare, alt 110-550 m, 27 Sept 1957, Maguire, Wurdack & C. K. Maguire 41609; same locality, Steyermark & Bunting 102648, 102547; Esmeralda Ridge, alt 150-200 m, 23 March 1953, Maguire & Wurdack 34664] rocky top of Esmeralda Ridge, Esmeralda, 6 Oct 1928, Tate 214; base of Esmeralda Ridge, Esmeralda, 20 Oct 1928, Tate 277; Esmeralda Ridge, between Esmeralda and base of Cerro Duida, alt 150 m, 21 Aug 1944, Steyermark 57746; open areas on Piedra Tururumeri, rios Pacimoni-Yatua, Casiquiare, alt 110-220 m, 4 Feb 1954, Maguire, Wurdack & Bunting 37492. COLOMBIA. Vaupés: Río Kubiyú (tributary of Río Vaupes), Cerro Kañendá, savannahs about 15 mi upstream from mouth, quartzite base, 1° 0' N, 70° 15' W, alt 242-272 m, 10 Nov 1952, Schultes & Cabrera 18323; Río Kuduyarí (tributary of Río Vaupes), Yapobodá, quartzite savannah near headwaters, 1° 20' N, 70° 30' W, alt ca 272-300 m, April 1953, Schultes & Cabrera 19992; Río Paraná Pichuna (tributary of Río Vaupés), 1° 10' N, 70° 30' W, alt ca 242 m, June 1953, Schultes & Cabrera 19923; Río Karurú (tributary of Río Vaupés), Mesa de Yambí, savannah Gooran-hooda, quartzite base, 1° 20' N, 71° 20' W, alt ca 287-300 m, 15-16 April 1953, Schultes & Cabrera 19119; Yapoboda, 10 Dec 1943, P. H. Allen 3141.

Discussion:

Type. Banks of the Orinoco near Esmeralda, Amazonas, Venezuela, R. Spruce 3428.

Although this taxon is rather uniform in general aspect, some variation may be noted. In Schultes & Cabrera 19119 from Vaupes, Colombia, the corollas are the largest recorded, with the total corolla length 46 mm, the tube 27 mm long, and the lobes 3 mm wide. In the Venezuelan collections the recorded lengths of the corolla vary from 27-43 mm, 15-22 mm for the tube, and 2-2.5 mm wide for the lobes. In Schultes & Cabrera 18323, also from Vaup├ęs, Colombia, the leaves are much reduced, and are only 5-7 cm long on the NY and G sheets with petioles only 5-9 mm long with leaf bases obtuse to subobtuse, whereas in the other collections examined the leaves are mainly 8-17 cm long with petioles 12-20 mm long, and the leaf bases are usually acute to subacute.

Distribution:Venezuela South America| Colombia South America|