Monographs Details: Retiniphyllum laxiflorum (Benth.) N.E.Br. var. laxiflorum
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. A red or rose-colored shrub or small tree of upland savanna and sandstone table mountains in Suriname (Tafelberg), British Guiana (Pakaraima Mountains, Roraima), and Venezuela, at alt. 495-1500 m. SURINAME. Tafelberg, Maguire 24373, 24439, 24786. BRITISH GUIANA. Margins of Chimapu Savanna, southern Pakaraima Mountains, Maguire, Maguire d Wilson-Browne 46151-A; woodland edge, Kamarang River crossing, Kamarang Head, Maguire 33260; Arabapu Creek bank edging the savannah, southern Roraima, Forest Dept. Record No. 7931; Richard Schomburgk 875 (photo of type of Synisoon schomburgkianum). VENEZUELA. Estado Bolivar: Mount Roraima district, vicinity of Arabupu, Pinkus 44; Mount Roraima, Philipp Camp, Tate 318; Kavanayen, sabanas de Mandapai, Lasser 1799; wooded slopes, Quebrada O-paru-ma, between Santa Teresita de Kavanayen and Rio Pacairao, Steyermark 60353; Gran Sabana, Yari, Tamayo 3131; valle Uriman, Rio Purpur, alto Caroni, Cardona 2593; teraza de Guayaraca, bosque pequeno, Auyan-tepui, Vareschi & Foldats 4662; woodland, Ilu-tepui, Maejuire 33209; Rio Sarven, slopes and talus forest, Sarven-tepui, Chimanta Massif, Wurdack 34340. Territorio Federal Amazonas: Cerro Yavi, K. D. Phelps d' Hitchcock 10; summit, Cerro de la Neblina, west escarpment slopes east of Cumbre Camp, Maguire, Wurdack & Maguire 42229; Cerro Yapacana, Maguire, Cowan & Wurdack 30626; Cerro Sipapo, Maguire & Politi 27925, 28515, 28707; Cerro Yutaje, left fork of Cano Yutaje, Maguire & Maguire 35241; forest between Campo Verado and Campo Perez, Cerro Guanay, Maguire, K. D. Phelps, Hitchcock & Budowski 31645; scrub forest, sandstone dome on right bank of Rio Siapo just below Raudal Gallineta, Wurdack & Adderley 43551.

Discussion:Patima laxiflora Benth. in Hook. Jour. Bot. 3: 220. 1841. Synisoon schomburgkianum Baill. Bull. Soc. Linn. Paris 208. 1879, type: British Guiana, Eich. Schomburgk 875 (photo from B at NY).
Distribution:Suriname South America| Guyana South America| Venezuela South America|