1. Leptopterigynandrum austro-alpinum C. Müll. 叉羽藓 cha-yu xian
Hedwigia 36: 114. 1897. Type. Argentina: April 1872, Lorentz s.n.
Leptopterigynandrum stricticaule Broth., Akad. Wiss. Wien Sitzungsber., Math.-Naturwiss. Kl. Abt. 1, 133: 577. 1924. Types. China: Sichuan (Setschwan), Yen-yuen Co., Handel-Mazzetti 2338 (syntype H); Yunnan, Zhong-dien Co. (Chungtien), Piepun, Handel-Mazzetti 4550, 4760 (syntypes H).
Plants minute, rather rigid, yellowish green, dull, in dense, small mats. Stems slender, up to 5 cm long, creeping, nearly pinnately branched, ascendant, 2–5 mm long, mostly branched once. Leaves imbricate when dry, widely ovate at base, nearly lanceolate or acuminate toward apex, strongly secund, ca. 1.4 mm long; basal leaf margins slightly revolute, entire or nearly entire; costa double, short and weak, rarely up to the middle of leaf; leaf cells hexagonal or nearly quadrate, marginal cells smaller, basal angle cells small, quadrate or rounded-ovate, opaque, smooth. Sporophytes not seen.