13. Bryum cellulare Hook. in Schwaegr. 柔叶真藓 you ye zhen xian
Sp. Musc. Frond., Suppl. 3(1): 214. 1827. Brachymenium cellulare (Hook.) Jaeg., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1873–1874: 111. 1875. Type: Nepal. Hooker s.n.
Bryum cellulare var. epipterygoides (Ochi) Ochi, Rev. Bry. Japan 63. 1959. Bryum epipterygioides Ochi, J. Jap. Bot. 29: 212. 1954.
Bryum compressidens C. Müll., Syn. Musc. Frond. 1: 290. 1848.
Bryum formosanum Broth., Öfvers. Förh. Finska Vetensk.-Soc. 62A(9): 17. 1921.
Bryum japonense (Besch.) Broth., Nat. Pflanzenfam. 1(3): 576. 1903. Brachymenium japonense Besch., Ann. Sci. Nat., Bot., ser. 7, 17: 340. 1893.
Bryum splachnoides (Harv.) C. Müll, Syn. Musc. Frond. 1: 291. 1848, hom. illeg. Brachymenium splachnoides Harv. in Hook., Icon. Pl. 1: 19, f. 2. 1836.
Bryum setschwanicum Broth., Sitzungsber. Kaiserl. Akad. Wiss., Math.-Naturwiss. Cl. 131: 213. 1923. Type: China. Sichuan, Handel-Mazzetti 1296 (holotype H).
Plants small to medium-sized, to 15 mm high, yellowish green to reddish, in tufts. Stems short, julaceous. Lower leaves small, sparse; upper leaves larger, dense, elongate-ovate or ovate-lanceolate, 0.8–1.5 mm long, cucullate above, narrowly obtuse or apiculate at apex; margins plane, entire, indistinctly bordered by 1–2 rows of linear-rhomboidal cells; costae ending below the apex or percurrent; upper and median leaf cells lax, rhombic or elongate-hexagonal, 85–150 µm × 20–25 µm, thin-walled; basal cells rectangular. Dioicous. Setae 10–15 mm long; capsules inclined to horizontal, shrunk when dry, pyriform, reddish brown; neck shorter than urn, narrowed at base; opercula conic, shortly apiculate; exostome teeth somewhat papillose, hyaline above; endostome segments linear, shorter than the teeth, perforate; basal membrane low; cilia absent. Spores 18–22 µm in diameter.