A genus of mosses in which the plants grow in patches resembling miniature forests; the shoots arise from an underground, rhizome-like stem. The leaves have a broad, sheathing basal portion which abruptly narrows into a lanceolate to linear-lanceolate blade with a very wide nerve. The calyptra is characteristically densely hairy and covers the capsule. A cosmopolitan genus, it is found on the ground in woods, moors, heaths, etc., and is calcifuge. See also hair moss.
Subjects: Plant Sciences and Forestry.