1. Entodon acutifolius R.-L. Hu 尖叶绢藓 jian ye juan xian
Bryologist 86: 206, f. 23–30. 1983. Type: China. Yunnan, Y.-Y. Chen 326 (holotype PE).
Plants soft, medium-sized, green, glossy, in dense mats. Stems prostrate, densely pinnately branched, complanate, with spreading, somewhat julaceous branches, attenuate at tips. Stem leaves ovate-lanceolate, ca. 1.2 mm × 0.4 mm, concave, gradually acuminate toward apex, constricted at base; margins plane, entire; costae double, very short; median leaf cells linear, 49–51 µm × 3.8–4.0 µm; alar cells numerous, quadrate. Autoicous. Setae ca. 15 mm long, yellowish; capsules erect, oblong-ellipsoidal; opercula shortly conic-rostrate; annuli absent; exostome teeth cross-striolate in basal 5–6 plates, vertically striolate above; endostome segments shorter than the teeth, linear, smooth. Spores not seen.