假狗牙藓

Plants rather small, slender, 1–3 cm high, pale green to yellowish green, in dense tufts. Stems erect, simple or sparsely branched, radiculose at the base. Leaves flexuose when dry, erect-spreading when moist, narrowly lanceolate, gradually acuminate from a narrow base to a long, acuminate apex; margins nearly plane, serrulate in the upper half; costa subpercurrent, roughened near the apex; upper cells quadrate, 10–15 µm wide, moderately mammillose; lower cells rectangular, smooth; alar cells slightly differentiated. Autoicous. Perigonia sessile. Setae erect, pale yellowish to reddish brown; capsules erect, symmetric, not strumose; opercula long, conic-rostrate; annuli developed, in 1 row; peristome teeth divided about 1/3 – 2/3 down, reddish brown. Spores ca. 21 µm in diameter, brownish, papillose.

Type. Europe.

Chinese specimens examined: JIANGXI: Lu Shan (Mt.), J.-M. Yang 60 (IFSBH), Y. -S. Yang 33021 (IFSBH). SICHUAN: Ya-jiang Co., S. He 31928a (MO). YUNNAN: Da-li Co., S.-D. Zhao & Z.-F. Fang 745 (IFSBH).

Habitat: on soil over rocks; Distribution: China, Russia (Siberia), Europe, and North America.

Illustrations: C. Gao (ed.) 1994 (Pl. 93, figs. 7–11).