1. Ditrichopsis clausa Broth. in Handel-Mazzetti 闭蒴拟牛毛藓 bi-shuo ni niu-mao xian
Symb. Sin. 4: 13. 1929. Type. China: Yunnan, Zhong-dian Co., Handel-Mazzetti 7674 (holotype H).
Plants small, slender, up to 10 mm high, yellowish green, in compact tufts. Stems erect, simple. Leaves loosely appressed when dry, erect-patent when moist, 1.9–2.5 mm long, lanceolate, gradually or rather abruptly narrowed from an oblong or oblong-ovate base to a long, slender, semi-canaliculate acumen; margins plane below, slightly incurved above, entire; costa shortly excurrent; upper cells narrowly elongate, 15–30 µm × 3–4 µm, thin-walled; basal cells rectangular, 40–60 µm × 5–15 µm, thin-walled, pellucid. Dioicous. Setae straight, 3–4 mm long; capsules erect, cylindric, ca. 1.5 mm long, abruptly contracted to an erect beak at apex; opercula not differentiated; annuli none; peristome teeth absent. Spores 24–26 µm in diameter, yellowish brown, coarsely papillose.