Plants large, forming mats or somewhat pendent, green or yellow-green to brownish; saxicolous. Stems creeping or pendent, 20-100 mm long, branching irregular, branches ± pinnate; in section round, central strand small, inner cortical cells somewhat thick-walled, hyaline, in 7 or 8 rows, outer cortical cells smaller, thick-walled, yellow-brown, in 3 or 4 rows; axillary hairs few, hyaline, 3 or 4 cells long; paraphyllia absent; pseudoparaphyllia absent but bud loose with erect, reduced leaves. Leaves evenly spaced, complanate, spreading to horizontal wet, appressed dry; oblong to broadly ovate, 2.0-3.5 mm long; short-to long-acuminate; apex contorted especially when dry; rounded or weakly auriculate at base; margins plane, denticulate to dentate, some teeth recurved, cells not differentiated but somewhat longer. Costa single, ending in acumen, smooth, surface cells elongate, smooth; in section elliptical, guide cells 2, large, thin-walled, dorsal and ventral cells in single row, smaller, thickened. Upper laminal cells linear to fusiform, homogeneous, 25-37 µm long, 3-7 µm wide, walls incrassate and pitted, papillose, papillae single, centred over lumen; basal cells oblong-hexagonal, 25-50 µm long, 7-10 µm wide, yellow, walls incrassate and pitted, smooth; alar cells rounded, quadrate to rectangular, hyaline, walls ± thickened and pitted. Perigonia on stem and branches, gemmate; leaves ovate-acuminate, up to 1 mm long. Perichaetia and sporophyte not seen.
Home