information on the natural vegetation where this species occurs has been recorded. But it grows 
in lowland areas (probably with tropical rain forest), between an altitude of 80 - 800 m. Its 
geographic distribution spans from Honduras (Nicaragua (?)), to Costa Rica. 
As mentioned above, C. costaricanum and C. neurophyllum are morphologically very 
similar. But, in addition to the differences mentioned under comments of C. costaricanum, the 
fact that they grow also at altitudinal ranges that do not overlap, supports accepting them as two 
distinct taxa. 
Specimenes examined. COSTA RICA. Alajuela. Reserva Biologica Monteverde Rio 
Pefias Blancas, Finca Wilson Bandilla, E. Bello 779 (MO(2 sheets)). Limon. La Aurora, 
Guacimo, ca. 5 km al E del pueblo, sobre el Rio Sierpe, frente al puesto del P.N. Tortuguero, R. 
Robles 2083 (MO); Puntarenas. Fila before Rancho Quemada, near Rincon, Osa Peninsula, A. 
Gentry et al. 78676 (MO(2 sheets)); Osa, Rincon, Rancho Quemado, camino a Chiqueron, G. 
Herrera 5013 (MO (3 sheets)); Osa, Rancho Quemado, Sector norte, camino a Cerro Chocuaco, 
J. Marin 438 (MO (4 sheets)); Osa Peninsula, Aguabena, K. Thomsen 299 (MO); Golfito Fila 
Gamba, camino entre Golfito y Villa Briceno, VN. Zamora 1919 (MO (3 sheets)); Osa, Rincon de 
Osa, Agua Buena, Q. Jiménez 947 (MO (4 sheets)); Osa Peninsula, Aguabena, K. Thomsen 739 
(MO); Osa Peninsula, Aguabena, K. Thomsen 942 (MO); Bords du Rio Hur, bassin du Diquis, H. 
Pittier 12054 (P, US, A, G). San José. Vicinity of El General, A. F. Skutch 3844 (NY, MO, S); 
Basin of El General, A. F. Skutch et al. 5116 (MO, NY, F); Vicinity of El General, A. F. Skutch 
4329 (MO, NY, S, F). HONDURAS. In deep forest near Lancetilla, 7. G. Yuncker 4945 (MO, F, 
NY). 
bz? 
