1. Pseudoleskeella catenulata (Brid. ex Schrad.) Kindb. 假细罗藓 jia xi-luo xian
Eur. N. Amer. Bryin. 1: 48. 1897. Pterigynandrum catenulatum Brid. ex. Schrad., J. Bot. (Schrader) 1801(1): 195. 1803. Type. Switzerland: Bridel s.n.
Plants soft, dark green to yellowish green, in loose or dense tufts. Stems creeping, irregularly pinnately branched; branches short, julaceous, curved at tips; pseudoparaphyllia small, linear-lanceolate. Leaves concave, cucullate, gradually tapered from cordate to ovate base to a mucronate apex, 0.6–0.8 mm × 0.30–0.45 mm; costa ending above middle of leaf, single or forked above; leaf cells smooth, short, small; median cells irregularly short-rhomboidal, 10–15 µm × 5–8 µm; basal cells near margins quadrate to flatly quadrate, 7.5–10.0 µm × 10.0-12.5 µm; basal cells along costa rectangular, 15–25 µm × 10 µm. Dioicous. Setae up to 1.5 cm long, yellowish brown; capsules pendent, recurved, yellowish brown or somewhat reddish; peristome double; exostome teeth narrowly lanceolate; cilia well developed. Spores spherical, 16–18 µm, finely papillose.