Monographs Details: Hymenophyllum
Authority: Maguire, Bassett. 1984. The Botany of the Guyana Highland - Part XII. Mem. New York Bot. Gard. 38: 1-84.
Family:Hymenophyllaceae
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.

Discussion:

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