Plants dark green or brown. Stems with branches ascending, ± tightly foliate, not curved at apices. Stem and branch leaves slightly differentiated. Stem leaves distinctly longer than broad, 0.4-0.7 mm; apex slenderly acuminate. Branch leaves ± crowded, ovate-lanceolate, not or slightly 2-plicate when dry, 0.2-0.5 mm; margins plane; apex gradually acuminate to acute, often blunt; costa subpercurrent; distal laminal cells 4-7µm, bulging-papillose abaxially. Seta yellow-brown, 0.4-0.9 cm. Capsule yellow-brown, cylindric, straight, 1.2-1.8 mm; annulus 1-or 2-seriate; operculum conic, short-rostrate; exostome teeth whitish; endostome segments very short, irregular. Spores 9-13 µm, very finely papillose.