4. Encalypta rhaptocarpa Schwaegr. 尖叶大帽藓 jian-ye da-mao xian
Sp. Musc. Frond., Suppl. 1, 1: 56. 1811. Type. Austria.
Plants small, 0.5–1.0 cm high, green or yellowish green, in tufts. Stems simple; central strand not well developed. Leaves twisted when dry, erect-spreading when moist, 2.1–3.5 mm long, oblong-ovate, oblong-lingulate to spathulate, apex broadly rounded, muticous or hair-pointed; margins plane; costa stout, ending below the apex, percurrent or excurrent; upper cells rounded to quadrate, 8–25 µm wide, densely papillose, obscure; basal cells oblong, 26–70 µm × 8–26 µm, with reddish, distinctly thickened transverse walls, several rows of marginal cells linear, 26–65 µm × 5–11 µm, thin-walled and pale. Autoicous. Perichaetial leaves similar to upper stem leaves. Setae yellowish to reddish brown, 1.5–7.0 mm long, erect, twisted above when dry; capsules cylindric, ca. 1.5–4.5 mm long, smooth or with dark reddish, longitudinal ribs; peristome teeth absent or single, lanceolate, pale golden, densely papillose; annuli undifferentiated; opercula with a long, straight beak. Calyptrae cylindric, smooth, reaching the base of capsules, with a rostrum 0.2–0.3 length of calyptra, basal margins somewhat irregular. Spores 24–35 µm in diameter, nearly smooth on proximal surface, with large warty papillae on distal surface.