36. Brachythecium salebrosum (F. Weber & D. Mohr) Schimp. in B.S.G. 褶叶青藓 zhe ye qing xian
Bryol. Eur. 6: 20. pl. 549. 1853. Chamberlainia salebrosa (F. Weber & D. Mohr) H. Rob., Bryologist 65: 105. 1962. Hypnum salebrosum Hoffm. ex F. Weber & D. Mohr, Bot. Taschenbuch 312. 1807. Type: Europe.
Brachythecium subalbicans Broth., Symb. Sin. 4: 106. 1929, hom. illeg., fide Ignatov et al. 2005. Type: China. Yunnan, Salwin, Handel-Mazzetti 8232 (H).
medium-sized, pale green or yellowish green, somewhat glossy, in loose mats. Stems
prostrate, 3–5 cm long, bi- or tri-pinnately branched; branches ca. 0.6–1.5 cm long, simple, attenuate at tips. Stem
and branch leaves
similar, appressed when dry, spreading when moist, oblong-ovate-lanceolate, 1.0–1.8 mm × 0.36–0.60 mm, concave, weakly bi-plicate, narrowly acute or shortly acuminate at apex, constricted at base; margins serrulate above, minutely so below; costae reaching above mid-leaf to 3/4 the leaf length; median leaf cells linear-rhomboidal, 50–88 µm × 7–9 µm, with angled ends, thin-walled; alar cells differentiated, quadrate, shortly rectangular or hexagonal, thin-walled, not extending close to costa at leaf base. Autoicous
. Perichaetial leaves
reflexed, ecostate. Setae
16–22 mm long, reddish brown, somewhat roughened above, smooth below; capsules ellipsoidal, inclined; opercula conic; exostome teeth vertically papillose above, cross-striolate below; endostome segments weakly papillose, slightly shorter than exostome teeth, perforate; basal membrane ca. 220 µm high; cilia 3, shorter than the segments. Spores
12–18 µm in diameter, smooth or minutely papillose.