12. Syrrhopodon parasiticus (Brid.) Besch. 拟网藓 ni wang xian
Ann. Sci. Nat Bot., sér. 8, 1: 298. 1896. Bryum parasiticum Sw. ex Brid., Musc. Rec. 2(3): 54. 1803. Type. Jamaica: Swartz s.n. (isotypes BM, NY).
Calymperopsis involuta P.-J. Lin, Acta Phytotax. Sin. 17(1): 92. 1979. Type. China: Hainan, P. C. Chen et al. 518c (holotype IBSC). Paratypes. China: Hainan, P. C. Chen et al. 497b (IBSC); Yunnan, Xi-shuang-ban-na, W.-X. Xu 6166 (YUKU).
Plants small, ca. 1 cm high, green to blackish, solitary, loosely gregarious, or in tufts of a few plants. Stems short, rhizoids reddish brown, scanty. Leaves often dimorphic, involute and falcate when dry, mostly folded and spreading when wet, curved, vegetative leaves narrowly lance-acuminate, grading into the deltoid and often comose gemmiferous leaves, mostly 3–4 mm long, axillary hairs inconspicuous; cells of upper laminae pellucid, isodiametric to short-rectangular, smooth to sharply unipapillose abaxially, bulging adaxially; margins of upper laminae narrowly bordered entirely or in part with hyaline cells, border sometimes more or less lacking or only in traces here and there, entire or irregularly with small, remote denticulation, margins of lower laminae entire, with or without border of hyaline cells; cancellinae ending in narrow acute angles distally. Gemmae common, filamentous, borne adaxially along costa at midleaf, gemmiferous leaves narrow, similar to vegetative leaves or short, broad, deltoid, and forming comae at stem tips. Sporophytes not seen.