4. Lindbergia sinensis (C. Müll.) Broth. 中华细枝藓 zhong-hua xi-zhi xian
Nat. Pflanzenfam. I(3): 993. 1907. Schwetschkea sinensis C. Müll., Nuovo Giorn. Bot. Ital., n. ser. 3: 111. 1896. Type. China: Shaanxi (Schen-si), Monte Si-ku-tsui-san, Giraldi 908 (isotype H).
Lindbergia magniretis (C. Müll.) Broth., Nat. Pflanzenfam. I(3): 993. 1907. Leskea magniretis C. Müll., Nuovo Giorn. Bot. Ital., n. ser. 4: 274. 1897. Type. China: Shaanxi (Schen-si), in monte Lao-y-san, March 1896, Giraldi s.n.
Plants tiny, delicate, green to yellowish green, in small mats. Primary stems creeping, ca.1–3 cm long, irregularly branched; branches short, 0.5–1.0 cm long. Leaves densely imbricate when dry, spreading when moist; stem leaves broadly ovate or triangularly broad-ovate, 0.9–1.4 mm × 0.5–0.8 mm, cordate at base, acute to acuminate at apex; branch leaves ovate, 0.6–0.9 mm × 0.25–0.50 mm; margins plane, entire; costa single, reaching middle part of the leaf; median leaf cells polygonal to rounded quadrate, thick-walled, smooth, 12–17 µm × 7–12 µm; basal cells near margins flatly quadrate, 12–15 µm wide. Autoicous. Perichaetial leaves slightly involute, gradually acuminate upward from an oblong base, 1.2mm × 0.3 mm, cells rectangular, pale-white. Setae yellowish brown, erect, 6–8 mm long; capsules erect, cylindrical, 2.0–2.4 mm long, more or less contracted at mouth when dry; peristome appearing single, exostome teeth shortly lanceolate, pale yellowish brown, verrucose, with blunt apex and lamella, reflexed when wet; endostome only with basal membrane left; opercula conical. Spores spherical, brown, 20–25 µm, papillose.