1. Schistostega pennata (Hedw.) Web. & Mohr 光藓 guang xian
Index Mus. Pl. Crypt. 2. 1803. Gymnostomum pennatum Hedw., Sp. Pusc. Frond. 31. 1801. Type. Europe.
Plants small, delicate, 4–8 mm high, light green, in loose tufts. Protonema well developed, persistent, luminous in dark places. Leafy stems erect-flexuose, unbranched. Sterile plants frondiform, naked below, foliate above; leaves 0.4–0.9 mm long, widely spreading, distichous-complanate, oblong to oblong-lanceolate, somewhat asymmetric, acute to acuminate, decurrent and confluent at the base, ecostate; margins plane, entire, slightly bordered; leaf cells oblong-rhomboidal to rhomboidal, 52–110 µm × 14–28 µm, thin-walled, pellucid, smooth. Fertile plants with leaves arranged in 4–5 rows, leaves smaller than those on sterile plants, 0.6–0.8 mm long, erect-spreading, lanceolate, clustered at top of the stems, ecostate; margins entire, unbordered, thin-walled, lax, oblong-rhomboidal. Dioicous. Male and female plants grow together on the same protonema. Setae erect, elongate, 3–4 mm long, slender, more or less flexuose; capsules small, ovoid to subglobose, 0.3–0.4 mm high, erect, symmetric, smooth; annuli and peristome none. Spores small, ca. 10 µm in diameter, smooth.