Monographs Details: Hypolepis
Authority: Proctor, George R. 1989. Ferns of Puerto Rico and the Virgin Islands. Mem. New York Bot. Gard. 53: 1-389.
Family:Dennstaedtiaceae
Scientific Name:Hypolepis
Description:Species Description - Rather large tenestrial fems, often of rampant habit. Rhizomes slender and wide-creeping, bearing pluricellular hairs but not scales. Fronds distant, often scandent and prickly; stipes stout, elongate, not articulate. Blades 1- to 4(5)-pinnate-pinnatifid; ultimate segments lobed or pinnatifid, glabrous to densely hairy or viscid-glandular; veins all free. Sori roundish, marginal or nearly so, solitary at sinuses of the ultimate segments, often indusiate by the reflexure of a modified marginal lobule, thus opening inwardly; paraphyses lacking; spores ellipsoid or nearly so, monolete, the surface more or less echinate.

Discussion:

Type Species. Hypolepis tenuifolia (G. Forster) Bemhardi, based on Lonchitis tenuifolia G. Forster of the region from N e w Zealand to southeastem China.

A pantropical genus of about 45 species, of which four occur in Puerto Rico. The generic name is derived from the Greek hypo, below + lepis, scale, referring to the reflexed frond lobes or "false" indusia which partly conceal the sori in many species.