Pseudocrossidium crinitum (Schultz) R.H.Zander

Plants medium-sized, in loose tufts, light green to yellow-green; terricolous or saxicolous. Stem to 35 mm high, infrequently branched; in section round, central strand small, cortical cells lax becoming incrassate near margin, 1-3 marginal rows smaller, substereids. Leaves contorted to spirally twisted dry, erect-to widespreading wet; lanceolate to linear above ovate base, 2.0-4.5 mm long; apex broadly acute to obtuse, frequently asymmetrical; margins recurved from base to apex, entire. Costa long-excurrent as yellowish, smooth to weakly denticulate awn, 1-2 mm long, ventral superficial cells quadrate, papillose, dorsal superficial cells elongate, strongly incrassate, smooth; in section reniform, guide cells 4, ventral stereid band small, over central guides, 2-3 cells thick, infrequently cells substereids, ventral surface cells thin-walled, papillose, dorsal stereid band large, 4-6 cells thick, dorsal surface cells unevenly thickened, lumen crescent-shaped. Upper laminal cells hexagonal to quadrate, with 2-4 large, C-shaped papillae over lumen; basal leaf cells short-to long-rectangular, smooth. Dioicous. Perichaetial leaves sheathing seta, oblong to elliptical, 4-5 mm long; apex acute; margins plane, entire, laminal cells elongate, rectangular to polygonal; basal cells long-rectangular. Seta erect, to 20 mm long, reddish yellow; capsule cylindrical, to 4 mm long, reddish brown; peristome yellowish, teeth filiform, papillose, spirally twisted, basal membrane short, 1-3 cells above mouth; operculum conical, 1.5 mm long; spores round, 10-12 µm, finely papillose.