1. Syntrichia caninervis Mitt. 齿肋赤藓 chi-le chi xian
J. Proc. Linn. Soc., Bot., Suppl. 1: 39. 1859. Barbula caninervis (Mitt.) Jaeg., Ber. Thätigk. St. Gallischen Naturwiss. Ges. 1871–72: 453 (Gen. Sp. Musc. 1: 301). 1873. Tortula caninervis (Mitt.) Broth., Nat. Pflanzenfam. I(3): 435. 1902. Type. China: Tibet, Thomson 174 (holotype NY).
Grimmia cucullata J.-X. Luo & P.-C. Wu, Acta Phytotax. Sin. 18: 121. f. 2: 1–7. 1980, hom. illeg.
Syntrichia desertorum (Broth.) Amann, Fl. Mouss. Suisse 3: 39. 1933. Barbula desertorum (Broth.) Par., Index Bryol.71. 1894. Tortula desertorum Broth., Beih. Bot. Centralbl. 34: 24. 1888.
Plants small to medium-sized, to 1.5(–2.0) cm high, in dense tufts. Stems erect, usually simple; central strand present. Leaves appressed to contorted-curved when dry, spreading or somewhat reflexed when moist, oblong-ligulate to spathulate, rounded-obtuse at apex, upper lamina broadly channeled or keeled, weakly sheathing at base; margins strongly revolute, crenulate by projecting papillae; costa rather stout, often reddish brown, excurrent, ending in a rather long awn, often serrulate on the back and at tips; upper leaf cells subquadrate to hexagonal, more or less thin-walled, each cell densely covered with several C-shaped papillae; basal cells distinctly differentiated, rectangular, thin-walled, hyaline, smooth. Autoicous. Setae ca. 1 cm long, straight; capsules erect, cylindrical; opercula conic-rostrate, with a long oblique beak.