Monographs Details: Trichomanes cellulosum Klotzsch
Authority: Maguire, Bassett. 1984. The Botany of the Guyana Highland - Part XII. Mem. New York Bot. Gard. 38: 1-84.
Family:Hymenophyllaceae
Description:Distribution and Ecology - General distribution. Colombia to Guyana and Peru.Guayana Highland distribution. Terrestrial or sometimes epipetric on sandstone.COLOMBIA . Comis. Vaupes: Rio Piraparana, Raudal Koro, Schultes &Cabrera 17087 (COL, U S ) ; Rio Piraparana, Cafio Paca, Raudal Yo-ree-hwe-ro,Schultes & Cabrera 17557 (COL, US ) . VENEZUELA . Terr. Amazonas: Maroa,upper Rio Negro, Williams 16124 (US); 4 k m E of S. Carios de Rio Negro, 120m , Liesner & Clark 3346 (UC); Cerro Sipapo (Paraque), Maguire & Politi 27613-A and 28534 (both N Y , U S ) ; Cerro Duida, 1095-1520 m , Steyermark 58010(US). Edo. Bolivar: Meseta del Jaua, N E portion of Cerro Sarisariiiama, 700 m,Steyermark, Espinoza & Brewer-Carias 109009 (COL, U S ) ; Chimanta Massif,N W part of Abacapa-tepui, 850-1100 m , Steyermark 75112 (F, US ) ; N slopes ofCerro La Danta, 1040 m , Steyermark & Nilsson 2 and 6 (both U S , VEN) ; NWslopes of Cerro Venamo , 1100 m , Steyermark & Nilsson 165 (US, VEN ) ; SW partof Cerro Venamo near the Guyana border, 1500 m , Steyermark, Dunsterville &Dunsterville 92591 (US, VEN ) .

Discussion:

Trichomanes filiforme Sturm in Mart., Fl Bras. 1(2): 269, /. 18, f 4. 1859. Type. Near Sao de Cachoeira, Est. Amazonas, Spruce 2278 (holotype BR not seen photo 4798; isotypes K not seen photos 19144, 19145, US).

Trichomanes gemmatum J. Smith ex Hook. & Bak., Syn. Fil. ed. 1: 87. 1867, nom. superfl. on the type of Trichomanes cellulosum Klotzsch, which was cited in synonymy.

Type. Canuku Mountains, Guyana, Rich. Schomburgk 1186 (holotype B not seen).

The lamina segments are c o m m o n l y narrower in specimens from the Guayana Highland than they are in specimens from farther west in Colombia and from Peru.

Distribution:Colombia South America| Guyana South America| Peru South America| Venezuela South America|