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Moss China | Family List | Moss China V. 2 | Pottiaceae | Desmatodon

Desmatodon yuennanensis Broth., Symb. Sin. 4:44. 1929.

Tortula chungtienia Zand., Bull. Buffalo Soc. Nat. Sci. 32: 223. 1993.

Plants small, ca. 10 mm high, in dense tufts. Stems simple, densely radiculose at the base. Leaves oblong to spathulate, contracted at the base, broadly acute at the apex; margins entire below, crenulate near the apex, border distinctly differentiated in 1–2 rows of linear cells, yellowish, thick-walled; costa excurrent in a short awn; upper leaf cells hexagonal to elliptic-rectangular, smooth; basal cells enlarged, oblong-rectangular, hyaline, smooth. Setae ca. 1 cm long, reddish brown; capsules horizontal, ovoid, slightly curved; peristome teeth short, erect, densely papillose; opercula shortly rostrate. Spores spherical or ovoid, minutely papillose.

Type. China: Yunnan, Zhong-dian (Chungtien) Co., Handel-Mazzetti 7725 (holotype H).

Specimens examined: XINJIANG: Ku-che Co., S. He 951210 (MO); Urumqi Co., S. He 951006 (MO); Wu-su Co., S. He 951102 (MO). XIZANG: Shuang-hu, K.-Y. Lang 1372 (HKAS).

Habitat: on rocks in high mountains; Distribution: endemic to China.

Illustrations: Pl. 116, figs. 9–12.


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