10. Pogonatum minusW.-X. Xu & R.-L. Xiong 细小金发藓 xi xiao jin fa xian
Acta Bot. Yunnan. 4: 51. f. 1. 1982. Type: China. Yunnan, Xundian Co., Tiansun Bridge, W.-X. Xu 77105 (holotype YUKU; isotypes HKAS, PE).
Plants dwarfed, pale green,loosely gregarious. Stems single, ca. 0.5–0.6 mm long, 2 mm wide with leaves; rhizoids hyaline at base. Leaves broadly ovate, suddenly constricted to a narrowly lanceolate limb, involute into cylinder when dry; leaf margins consisting of 1–2-celled, obtuse teeth; costa rigid, smooth on the back; lamellae arranged in 30–35 ranks, undulate, 3–7 cells high, apical cells of lamellae small or somewhat inflated, in cross section round or oblong, sometimes the apical cells or subapical cells in pairs; leaf sheath cells narrowly rectangular to linear, hyaline; upper leaf cells small, oblong to rounded hexagonal. Dioicous. Setae ca. 15 cm long, usually single, rarely double; capsules rounded ovoid to shortly cylindrical, ca. 2 mm long; exothecial cell walls mammillose; opercula conical, beak 0.3 mm long; peristome teeth 32, hyaline, lightly reddish; membrane low. Calyptrae ca. 2 mm long, densely hairy. Spores yellow, rounded, 7–8 µm in diameter.