Aongstroemia B.S.G., Bryol. Eur. 1: 171. 1846.
Plants slender to elongate, terricolous; stems julaceous. Leaves appressed, oval to oblong; costa single, strong; cells elongate or oval, firm-walled and smooth; alar cells undifferentiated. Dioicous. Setae smooth, erect; capsules erect, ovoid-cylindrical; opercula rostrate; peristome teeth divided above or absent. Calyptrae cucullate.