2. Aongstroemia Bruch & Schimp. in B.S.G. 昂氏藓属 ang-shi xian shu
Bryol. Eur. 1: 171. 1846.
Plants slender, erect, yellowish green, in loose tufts. Stems julaceous, usually simple. Leaves appressed, oval to oblong, broadly acute, sharply bent to one side at the tips; costa single, thick, percurrent; upper laminal cells irregularly hexagonal or rhombic, thick-walled, smooth; lower laminal cells slightly elongate, rectangular, firm-walled; alar cells not differentiated. Dioicous. Setae elongate, straight, smooth; capsules erect, cylindric; opercula long-rostrate; annuli well developed; peristome teeth absent or inserted below the mouth when present, entire or divided above. Calyptrae cucullate. Spores small, spherical.