10. Desmatodon yuennanensis Broth. 云南链齿藓 yun-nan lian-chi xian
Symb. Sin. 4: 44. 1929. Tortula chungtienia Zand., Bull. Buffalo Soc. Nat. Sci. 32: 223. 1993. Type. China: Yunnan, Zhong-dian (Chungtien) Co., Handel-Mazzetti 7725 (holotype H).
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.