Plants small, forming mats, grey-green to yellow-green; terricolous, humicolous, saxicolous or corticolous. Stems creeping, 15-30 mm long, branches irregular, scattered; in section round or oval, central strand absent, inner cortical cells thin-walled, in 2 or 3 rows, outer cortical cells smaller, ± thick-walled, red-brown. Leaves evenly spaced, spreading wet, ± crisped and curved downward dry; broadly ovate to oblong, 1-2 mm long; apex variable, truncate or rounded to obtuse or almost acute; rounded and narrowed to insertion; margins plane, serrate, cells not differentiated. Costa double, ending below apex, with a single dorsal tooth at each tip, smooth or ridged dorsally; ventral surface smooth, cells elongate; dorsal surface toothed above, bulging or ridged, cells elongate; in section bulging dorsally. Upper laminal cells irregularly shaped, homogeneous, 12-20 µm long, 5-8 µm wide, walls weakly thickened, papillose above dorsally but some papillae on ventral surface; papillae single, low, centred over lumen; basal cells almost rectangular, forming distinct group, 25-37 µm long, 8-15 µm wide, hyaline, smooth; alar cells not forming distinct groups. Dioicous? Perichaetia small, green; perichaetial leaves ovate to oblong, 1 mm long; acute to acuminate; leaf cells ± rectangular. Seta 10-15 mm long, red-yellow, ± smooth. Capsule exserted, horizontal, ovoid, 1 mm long, smooth, dark red; urn ovoid; neck tapering, shorter than urn; exothecial cells short rectangular, walls collenchymatous, cells at mouth transversely rectangular, neck cells rectangular; stomata on neck cryptopore, formed of 4 cells, some not functional. Peristome double, red; exostome teeth triangular, inflexed at tips dry, erect appressed wet, striate and deeply furrowed below, papillose above, 200 µm high; endostome segments lanceolate and keeled above high basal membrane, as long as teeth, weakly granulate; cilia absent. Operculum rostrate, when young body yellow, beak dark red, 0.5 mm long. Calyptra large, mitrate, 2 mm long, rough above. Spores rounded, 10-13 µm, weakly papillose, green.
Home