Lepisorus schraderi Ching

Plants epilithic or epiphytic. Rhizome wide-creeping, to 2.5 mm in diameter, laterally branched, with closely to widely spaced phyllopodia dorsally, phyllopodia to 5 mm apart, to 2 mm long, initially densely scaled, scales crustaceous, bicolorous, with a black to castaneus central region, margins paler, clathrate, sessile, ovate-acuminate, peltate, cordate, or cordate-imbricate, denticulate, apex terminates in a small thin-walled cell, to 4 mm long, to 1.5 mm wide. Fronds monomorphic, erect to arching, simple, to 290 mm long; stipe articulated to the phyllopodia, terete, to 30 mm long, or estipitate, to 1.2 mm in diameter, glabrous; lamina herbaceous, simple, narrowly elliptic-acuminate to linear-acuminate, attenuate, entire, to 260 mm long, to 25 mm wide, adaxially sparsely set with 2-celled hairs, apical cell enlarged, elliptic, to 130 µm long, abaxially sparsely set with appressed scales and hairs, hairs similar to those on the adaxial surface, scales usually restricted to the costa, crustaceous, black to castaneus, clathrate, sessile or short-stalked, ovate-acuminate, cordate to cordate-imbricate, denticulate, apex terminates in a small thin-walled cell, to 1.8 mm long, to 0.8 mm wide; costa adaxially raised, pronounced abaxially. Venation obscure, reticulate, secondary veins anadromous and/or catadromous, areola with simple and branched included and excurrent veinlets ending in a hydathode. Sori circular, at a vascular plexus, in a single row parallel, and on both sides of the costa on the distal part of the lamina, to 5 mm in diameter; exindusiate; receptacle scales clathrate, peltate, long-stalked, circular to broadly elliptic, denticulate to erose, with a single, elliptic, thin-walled cell along the margin; sporangium long-stalked, simple, 3-seriate below the capsule, capsule ellipsoid in lateral view, with (13-)14(-16) indurated annulus cells, epistomium (3-)4-celled, hypostomium (3-)4(-5)-celled. Spores 64 per sporangium, pale yellow, ellipsoidal, monolete, rugate, (74-)76(-82) x (42-)49 µm.