Bot. Centralbl. 19: 149. 1884 ,
Plants dull, light to yellow-green, becoming brownish with age. Leaves ± complanate both dry or wet, arranged in 4 rows, dimorphic, dorsal leaves larger, ± asymmetric, ventral leaves smaller, ± symmetric; laminal cells pluripapillose. Perichaetial leaves slightly enlarged, sheathing. Seta short. Capsule shortly exserted, oblong-cylindric, stomata few or absent; annulus narrow, persistent; peristome absent; operculum obliquely apiculate to rostellate. Calyptra cucullate, ± papillose, non-plicate. Spores finely papillose.
North America, Mexico, West Indies, Central America, South America, Asia, Africa, Australia.