Monographs Details: Hymenophyllum
Authority: Maguire, Bassett. 1984. The Botany of the Guyana Highland - Part XII. Mem. New York Bot. Gard. 38: 1-84.
Scientific Name:Hymenophyllum
Description:Genus Description - Rhizomes very long-creeping, wiry, bearing scattered fronds. Laminae minute to small, ovate to oblong, pinnate-pinnatifid to 2-pinnate-pinnatifid, usually with narrow segments, usually 1 cell thick between the veins, glabrous or bearing minute, simple, forked, or stellate hairs; stipes and rachises terete, wiry, exalate or partially or entirely alate; venation free, pinnate; sori marginal and terminal at the end of veins, the indusial involucres bivalvate, circular, semicircular, or angled at the base, the receptacles rarely exserted.


Lectotype. Hymenophyllum tunbrigense (L.) J. E. Smith, chosen by Presl (1844, p. 31).