Plants medium-sized, forming mats, olivaceous or yellowish green above, reddish brown to brown below; corticolous. Primary stem tomentose below; rhizoids smooth, reddish brown; secondary stems numerous, 2-10 mm tall, branching by subperichaetial innovations; in section inner cortex 9-11 cells across, incrassate, outer cortical cells smaller, in 1 or 2 rows, consisting of substereids or stereids, outer surface rough. Stem leaves secund, ovate-lanceolate or lanceolate, 0.75-1.4 mm long. Branch leaves ± crowded, tightly inrolled, twisted when dry, erect-spreading, incurved when wet, occasionally rugulose, unistratose; narrowly lanceolate or ligulate, (1.4-)1.6-2.8 mm long, ventral surface keeled; apex acute, obtuse or mucronate, weakly cucullate; margins plane or recurved on one side, crenulate. Costa ending Autoicous. Perigonia on short or long branches. Perichaetia terminal; leaves oblong-lanceolate or lanceolate, as long as branch leaves. Seta 4.5-7.5(-12.0) mm long, yellowish or reddish brown. Capsule ovate-cylindrical, 1.2-1.8 mm long, reddish brown, weakly to strongly 8-ribbed; mouth contracted, 8-ribbed; neck differentiated; exothecial cells irregularly rounded-quadrate to rectangular, incrassate, smaller at mouth. Peristome single, reduced, inserted below mouth; teeth 16, oblong, blunt, 55-150 µm long, yellowish brown or pale yellow, striolate papillose. Operculum 0.8 mm long. Calyptra naked or sparsely hairy, lacerate below, 2.0-2.3 mm long. Spores 21-34 µm, densely papillose; isosporous.
More
Stems with branches to 1 cm, simple or 2-fid. Branch leaves 0.7-1.8 mm; basal laminal cells tuberculate or smooth, walls thick; distal cells bulging mid leaf, grading to papillose-bulging at tip. Seta dextrorse. Capsule with exothecial cells not differentiated; stomata at capsule base; exostome teeth rudimentary, delicate, pale yellow. Spores 22-32 µm, densely papillose.
Home