Monographs Details: Lagenocarpus rigidus subsp. tremulus (Nees) T.Koyama & Maguire
Authority: Maguire, Bassett. 1965. The Botany of the Guayana Highland. Mem. New York Bot. Gard. 12 (3): 1-285.
Family:Cyperaceae
Description:Distribution and Ecology - Distribution. Widely distributed in the West Indies, the Guayana Highland and the northern part of Brazil adjacent to Guayana. The specimens of the following numbers have been examined. WEST INDIES. Cuba, Isle of Pines: Britton, Britton d Wilson 14349; Jennings 327; Ekman 12142. Trinidad: Aripo Savanna, Beard 127 (A, NY ); 0. Kuntze 1042; Britton, Broadway d: Hazen 273; Arima, 0. Kuntze 1015. SURINAME. Tafelberg, Maguire 24221; Zanderij II., Maguire d Stahel 23660, 23721; Lanjouw d; Lindeman 113 (L, N Y ) . BRITISH GUIANA. Schomhurgk s.n.; Rupununi, Harrison 1359; Orinduik Falls, Harriso 1443; Kaieteur Plateau, Maguire d Fanshawe 23465; Imbaimadai, Maguire & Fanshawe 32164; Karowtipu, Tillett dj Tillett 45601; Pakaraima Mts., Maguire, Maguire d Wilson-Browne 46206A; Holitipu, Maguire d Fanshawe 32502, 32549. VENEZUELA. Bolivar: Roraima, Tate 24; Steyermark 58663, 59302 (F, type of L. Utidus, from south of Mt. Roraima, between Divme Pastora on Rio Kukenan and S. Elena, alt. 915-1005 m); Ilu-tepui, Maguire 31384; Kavanayen, Steyermark 59363 (F, type of L. steyermarkii, from Mission of Santa Teresita de Kavanayen, NW of Rio Karuai, on large mesa, alt. 1220 m ),60341; Ptari-tepui, Steyermark 59638, 59665; Sabana de Triana, Steyermark 89695; Chimanta-tepui, Steyermark d Wurdack 328, 988; Uriman, Bernardi 874, Steyermark 75273; Uaipan-tepui, Phelps d Hitchcock 410, Steyermark d Nilsson 552, Cardona 2025 (US, VEN); Cerro Piton, Maguire, Steyermark d Maguire 53658. Amazonas: Serrania Yutaje, Maguire & Maguire 35504, 35407; Cerro Yavi, Phelps d Hitchcock 14; Rio Atabapo, Williams 13851; Cerro Paru, Cowan & Wurdack 31384; Cerro Moriche, Maguire, Cowan d Wurdack 30853; Cerro Duida, Steyermark 57856, Tate 1040; Cerro Sipapo, Maguire d Politi 27690, 27607, 28193. BRAZIL. Amapa, k m 48, road to Amapa, frequent in marshy savanna, Pires d Cavalcante 52053.

Discussion:Lagenocarpus tremulus Nees, Fl. Bras. 2(1): 167. 1842. Anogyna tremula (Nees) Nees in Hooker, Jour. Bot. 2: 395. 1840. Cryptangium Jcunteeanum Bocklr., Cyp. Nov. (Beitr. Kennt. Cyp.) Heft 1, 32. 1888. Syn. nov. Cryptangium tremulum (Nees) Bocklr., Allg. Bot. Zeitschr. 2: 143. 1896. Lagenocarpus kuntseanus (Bocklr.) 0. Kuntze, Eev. Gen. PI. 2: 754. 1891. Lagenocarpus tremulus Nees forma multigyna [sic] H. PfeiJBfer in Fedde, Eepert. Sp. Nov.18: 75. 1922. New name for Cryptangium kuntseanum. Lagenocarpus tremulus Nees var. brevifolius H. Pfeiffer in Pedde, Eepert. Sp. Nov. 18: 75. 1922. Ex parte incl. basionym. Lagenocarpus bifidus Gilly, Pieldiana Bot. 28(1) : 56. 1951. Syn. nov. Lagenocarpus diffusus Gilly, Pieldiana Bot. 28(1) : 56. 1951. Syn. nov. Lagenocarpus steyermarTcii Gilly, Pieldiana Bot. 28(1) : 58. 1951. Syn. nov.
Distribution:Guyana South America|