2. Pogonatum camusii(Thér.) Touw 穗发小金发藓 sui fa xiao jin fa xian
J. Hattori Bot. Lab. 60: 26. 1986. Rhacelopodopsis camusii Thér., Monde Pl. ser. 2(9): 22. 1907. Type: Japan. Ryukyu Island, Ferrié s.n.
Plants with persistent protonemata, light green, usually in small mats on moist ground. Stems very short, with only 6–7 leaves. Basal leaves scale-like, ovate or ovate-triangular, acuminate, with a few ciliated teeth at margins; upper leaves ovate-lanceolate, lacking any kind of lamellae on dorsal or ventral surface, irregularly ciliate-toothed at apex; margins entire below; costa slender, vanishing below leaf apex; leaf cells rectangular or irregularly hexagonal, thin-walled, 25–60 µm in diameter; lower cells more than 100 µm long, very thin-walled. Inner perichaetial leaves ovate-lanceolate, with hairy flexuose apices, lamellae lacking; margins entire below, remotely ciliate above; costa slender, vanishing below leaf apex. Setae ca. 15 µm long, brown, twisted, densely papillose; capsules without apophyses, brownish green, shortly cylindrical, ca. 2 mm long or longer, with 5 rounded keels in cross section; stomata absent; opercula conical, shortly beaked; peristome teeth ca. 36, broadly lingulate, obtuse at tips. Calyptrae cucullate, with numerous, golden, long hairs. Spores ca. 8 µm in diameter, smooth.