5. Trachyphyllum A. Gepp in Hiern 叉肋藓属 cha le xian shu
Cat. Afr. Pl. 2(2): 298. 1901.
Plants small to medium-sized, slender, somewhat stiff, yellowish to brownish, in large, dense mats. Stems prostrate, irregularly pinnately branched; branches short, julaceous, blunt at tips, often curved when dry. Stem and branch leaves similar, erect-spreading, ovate, concave, often with apiculate apex; margins plane, mostly entire, or minutely serrulate near leaf apex; costae short, double or forked; median leaf cells elliptical to oblong-rhombic, often prorate; basal alar cells differentiated in a small group, consisting of quadrate to oblate cells, extending upward along margins. Sporophytes rare. Dioicous. Setae slender; capsules oblong-ovoid; peristome double. Calyptrae cucullate, smooth. Spores spherical, finely papillose.