3. Vesicularia hainanensis P.-C. Chen 海南明叶藓 hai nan ming ye xian
Sunyatsenia 6: 193. 1941. Type: China. Hainan, Pepu, Z. Ho 1122 (holotype PE).
Plants rather robust, pale green, somewhat glossy, in tufts. Stems prostrate, 4–6 cm long, leafy stems ca. 1.4 mm wide, pinnately branched, branches up to 1 cm long, with numerous clustered rhizoids. Leaves appressed when dry, curled when moist, concave, asymmetric, elliptic to broadly elliptic, acuminate, ca. 1.0 mm × 0.5 mm; margins plane, serrulate above; costae double, short or absent; leaf cells rhombic to hexagonal, basal cells rectangular; alar cells hardly differentiated. Autoicous. Setae 1.0–1.5 cm long, smooth, curved, reddish yellow; capsules pendulous, ovoid to ellipsoid, ca. 1.3 mm × 0.8 mm; opercula conic, shortly rostrate; peristome double, exostome teeth narrowly lanceolate, cross-striate below, hyaline and papillose above on outer surface, trabeculate on the inner surface; endostome segments as long as the teeth, keeled, perforate; basal membrane 144 µm high; cilia 1–2, hyaline, papillose. Spores ca. 10 µm in diameter, brownish green, smooth or papillose.