美叶藓

Gymnostomum kurzianum Hampe in Jaeg., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1877–78: 367. 1880, nom. nud. Gymnostomum kurzii Hampe ex Kindb., Enum. Bryin. Exot. 61. 1888, nom. nud. Hymenostylium kurzii Hampe in C. Müll., Gen. Musc. Frond. 396. 1900, nom. nud.

Plants medium-sized, up to 2.5 cm high, dark green to reddish brown, in dense tufts. Stems erect, branched. Leaves imbricately appressed when dry, spreading when moist, oblong-ovate, narrowly obtuse or blunt at the apex; margins entire, recurved; costa ending in a few cells below the apex, dorsally papillose; upper cells rounded-quadrate to elliptic, rather thick-walled, with rough papillae on each cell; basal cells slightly differentiated and larger. Capsules with distinct neck; opercula conic, with short and blunt beak.

Type. Sikkim: Phalloot Top, Kurz 2026.

Chinese specimens examined: QINGHAI: Xing-hai Co., F.-G. Lu 27 (HKAS). XIZANG: Ba-qing Co., K.-Y. Zhao 53e (PE); Mo-tuo Co., Y.-G. Su 3637 (HKAS); Mt. Everest, X.-G. Wang 3 (HKAS, PE); Sha-ge Co., K.-Y. Lang 428d (PE), 1205 (MO, PE).

Habitat: on rocks in mountains, occasionally on tree bases; Distribution: China and India.

Illustrations: Pl. 112, figs. 1–5.