1. Scopelophila cataractae (Mitt.) Broth. 剑叶舌叶藓 jian-ye she-ye xian
Nat. Pflanzenfam. I(3): 436. 1902. Merceya cataractae (Mitt.) Müll. Hal., Gen. Musc. Frond. 384. 1900. Weissia cataractae Mitt., J. Linn. Soc., Bot. 12: 135. 1869. Type. Ecuador: Agoyán, Spruce 45c.
Merceya gedeana (Sande Lac.) Nog., Kumamoto J. Sci., Sect. 2, Biol. 2: 247. 1956. Pottia gedeana Sande Lac., Verh. Kon. Ned. Akad. Wetensch., Afd. Natuurk. 13: 4. 2 B. 1872.
Merceyopsis formosica Broth. ex Sakurai, Bot. Mag. (Tokyo) 48: 386. 1934. Type. China: Taiwan, Tai-chiu, Horigai, Sasaoka 1709.
Merceyopsis sikkimensis (Müll. Hal.) Broth. & Dix., J. Bot., 48: 301, f. 7. 1910. Scopelophila sikkimensis Müll. Hal. in Renauld & Cardot, Bull. Soc. Roy. Bot. Belgique 41(1): 53. 1905.
Plants small to medium-sized to rather large, to 2 cm high, soft, green to yellowish green or brownish, in loose or dense tufts. Stems erect, simple or rarely branched. Leaves strongly crisped when dry, spreading when moist, ca. 2–3 mm long, lingulate or ligulate to elliptic-lanceolate, narrowed at the base, slenderly to broadly acute; margins plane or somewhat recurved below, entire; costa slender, percurrent; upper leaf cells rounded-quadrate to irregularly hexagonal, thin- to moderately thick-walled, smooth; basal cells short-rectangular, somewhat enlarged, rather thin-walled, smooth. Setae ca. 3–4 mm long; capsules erect, short-cylindrical with a narrowed mouth.