毛齿藓属

Plants small, yellowish green, in loose or dense tufts. Stems erect, usually simple. Leaves flexuous or crispate to subsecund above when dry, wide-spreading when moist, lanceolate, rather abruptly narrowed from an oblong-ovate, sheathing base to a long, linear or subulate acumen; margins plane or occasionally slightly reflexed below, serrulate above; costa single, percurrent, filling most of the subula; upper cells short-rectangular, firm-walled, smooth; basal cells rectangular, thin-walled; alar cells not differentiated. Dioicous. Setae slender, straight; capsules cylindric, slightly inclined, smooth when dry; opercula short conic-rostrate; annuli differentiate, in several rows of large, thick-walled cells, revoluble, deciduous; peristome teeth 16, linear-lanceolate, papillose, 2–3 divided nearly to the base, basal membrane low. Calyptrae cucullate, smooth, naked. Spores spherical, small, smooth.

The genus consists of two species in the world.

Lower Taxon

• Trichodon muricatus Herz.