Monographs Details: Hymenophyllum karstenianum Sturm
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. Venezuela and Colombia to Peru. Guayana Highland distribution. Epiphytic on tree trunks and branches, sometimesepipetric on cliffs. V E N E Z U E L A . Terr. Amazonas: Cerro Sipapo (Paraque), Cafio Profundo, Maguire & Politi 28274 (NY, U S ) ; Cerro Sipapo (Paraque), SE summit, 5500 ft, Maguire & Politi 27804 (NY, U S ) ; Sierra Parima, headwaters ofthe Rio Matacuni near the Brazilian frontier, 1500 m , Steyermark 107537 (US, V E N ) ; Cerro Huachamacari, S u m m i t C a m p along R fork of Cafio de Dios, 1900 m , Maguire, C o w a n & Wurdack 30173 (NY, U S ) ; Cerro Marahuaca, 1000 m, Maguire & Maguire 29177 (NY); S u m m i t of M t . Duida, S bank ofthe Cafio Negro, Savanna Hills, 4400 ft, Tate 852 ( N Y , U S ) . Edo. Bolivar: Meseta del Jaua,summit of N E portion of Cerro Sarisarinama, 700 m , Steyermark, Espinoza & Brewer-Carias 109128 (US, V E N ) ; Auyan-tepui, summit of N part ofthe S section along the Rio Churun, 1690 m , Steyermark 93244 (US, V E N ) ; Chimanta Massif, central section above the Upper Falls ofthe Rio Tirica, 1965 m , Steyermark & Wurdack 45549 (F, U S ) ; Chimanta Massif, Amuri-tempui ( W sector of Acopantepui), ca 1850 m , Steyermark, Huber & Carrefio E . 128726 (US, V E N ) ; Ptaritepui, 1810 m , Steyermark 59515 (US).

Discussion:

Lectotype. Merida, Edo. Merida, Venezuela, Moritz 381 p. p. (lectotype BR not seen), inferentially chosen by Morton (Contr. U.S. Natl. Herb. 29: 154. 1947). The other syntypes are: Near Colonia Tovar, Edo. Aragua, Venezuela, Fendler 39 (isosyntype B R not seen photos 4839, 19864 U S ) ; and Mt. Campana, near Tarapoto, Depto. S. Martin, Peru, Spruce 4694 (isosyntype B R not seen photos 4840, 19863, K not seen, U S ).

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