Rhamphidium Mitt., J. Linn. Soc., Bot. 12: 45. 1869.
Trichostomum subg. Rhamphidium (Mitt.) Besch., Ann. Sci Nat., Bot. sér. 6, 3: 198. 1876.
Plants small, caespitose to gregarious, terricolous or saxicolous, irregularly branched with rhizoids scattered on stems. Stems with central strand and sclerodermis present. Leaves lanceolate to ovate from a broad, sheathing base; apices obtuse to broadly acute; margins plane, erect or incurved; costa subpercurrent to percurrent, guide cells and two stereid bands present, ventral surface layer somewhat enlarged, bulging; upper cells irregularly quadrate, hexagonal, to short-rectangular, strongly bulging on the ventral surface, not or somewhat bulging on the dorsal surface, at times unipapillose, basal cells long-rectangular, firm-walled, alar cells not differentiated. Dioicous. Setae smooth, red. Capsules exserted, short-cylindric to ellipsoid, inclined; stomata present at base; opercula long, slenderly rostrate; annuli persistent; peristome teeth 16, reddish orange, united at base into a short basal membrane, each tooth divided to the basal membrane into two, densely spiculose to spirally ridged filaments. Spores smooth or granulate. Calyptrae cucullate.