Monographs Details: Hypolytrum amplum Poepp. & Kunth
Authority: Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.
Family:Cyperaceae
Description:Distribution and Ecology - Rather sporadically recorded from lowland rainforests in British Guiana, Brazilian Amazonia and Central America. COSTA RICA. Pacific Coast, Cocos Is., H. Pittier 12380 (US). BRITISH GUIANA. Essequibo River, Jenman 1310 (K); Mazaruni River and Essequibo River, Appun 217 (K); Kalakoon, Jenman 2496 (K); Pomeroon River, Waruwaru Creek, Jenman 7990 (K) ; Pomeroon River, Abrahams Creek, Jenman 7912 (K); upper Mazaruni River, Kama-kusa, De La Cruz 2788; Mazaruni River, Bartica, Leng in 1922; SE of Georgetown, canal SE of Lamaha Stop-off, A. S. Hitchcock 16966; Upper Rupuruni River, near Dadanawa, De La Cruz 1739. BRAZIL. Para: Braganga Railroad, Goerdi 1913.

Discussion:

Hypolytrum costatum Hochst. ex Steudel, Syn. Pl. Glumac. 2: 133. 1855. [Suriname, Hostmann 1168 (W)].

Type. Brazil. Prope Ega, ad fluvium Amazonum, in svlvis densissimis. Poeppig (B).

Distribution:Costa Rica South America| Guyana South America|