1. Sakuraia conchophylla (Cardot) Nog. 螺叶藓 luo ye xian
J. Jap. Bot. 26: 52. f. 1–4. 1951. Entodon conchophyllus Cardot, Bull. Soc. Bot. Genève, ser. 2, 3: 286. 1911. Type: Japan.
Sakuraia macrospora (Broth.) Broth., Nat. Pflanzenfam. (ed. 2) 11: 392. 1925. Entodon macrosporus Broth., Öfvers. Förh. Finska Vetensk.-Soc. 62: 27. 1921.
Plants medium-sized to rather robust, yellowish green, or sometimes reddish, glossy, in loose mats. Stems prostrate, to ca. 10 cm long, irregularly branched; branches simple, 5–15 mm long, densely foliate, attenuate or blunt at tips. Stem and branch leaves similar, oblong-ovate or oblong-elliptical, 1.40–1.55 mm × 0.50–0.55 mm, deeply concave, abruptly and slenderly acuminate at apex, somewhat constricted at base; margins entire; costae double, short, to ca. 1/5 the leaf length; median leaf cells linear, 50–70 µm × 5–7 µm; apical cells not particular shorter; alar cells numerous, quadrate, extending upward to ca. 15 cells high along margins. Autoicous. Setae 14–25 mm long, reddish brown; capsules ovoid to elongate-ellipsoidal, reddish brown; opercula conic-rostrate; annuli well developed, yellowish brown, consisting of 2–3(–4) rows of inflated cells; peristome double; exostome teeth narrowly lanceolate, papillose on both surfaces; endostome segments linear, pale yellowish, papillose. Calyptrae cucullate, smooth. Spores irregular, 40–55 µm in diameter, papillose.