Monographs Details: Histiopteris
Authority: Mickel, John T. & Beitel, Joseph M. 1988. Pteridophyte Flora of Oaxaca, Mexico. Mem. New York Bot. Gard. 46: 1-580.
Description:Genus Description - Terrestrial; rhizome long-creeping, 2-5 mm diam., with castaneous hairs and scales; fronds large, distant, erect to subscandent; stipe stramineous to brown, lustrous, glabrous; blade bi- to tripinnate, often with large stipule-like pinnule at pinna base; pinnae and pinnules opposite, light pea-geen, herbaceous; lamina glabrous or with crisped, multicellular hairs, often glaucous; veins netted, without included veinlets; sori marginal, continuous, blade margin reflexed and differentiated as indusium, lacking inner indusium; spores bilateral, yellow or light brown.
Discussion:Type: Histiopteris vespertilionis (Labillardière) J. Smith [=Pteris vespertilionis Labillardière, = Histiopteris incisa (Thunberg) J. Smith].
Histiopteris has one rather variable species over its pantropical range, and four other species in Southeast Asia and the South Pacific. It is closely related to Pteridium and Lonchitis, but lacks an inner indusium, has rhizome scales, and is not aggressive. It is limited mostly to higher elevations (cloud forests).