8. Trichostomum zanderi Redfearn & B. C. Tan 芒尖毛口藓 mang-jian mao-kou xian
Trop. Bryol. 10: 68. 1995. Trichostomum aristatulum (Broth.) Hilp. ex P.-C. Chen, Hedwigia 80: 167. 1941, hom. illeg. Hyophila aristatula Broth., Akad. Wiss. Wien Sitzungsber., Math.-Naturwiss. Kl., Abt. 1, 131: 211. 1923. Type. China: Hunan, Chang-sha (Tschangscha), Handel-Mazzetti 11603 (holotype H).
Plants small to medium-sized, to 30 mm high, dark green to light brown, in dense tufts. Stems erect, usually irregularly branched. Leaves contorted-curved when dry, erect-spreading or weakly reflexed when moist, narrowly ovate-lanceolate, acute or apiculate at apex, upper lamina weakly channeled, somewhat sheathing at base; margins usually plane, sometimes incurved, entire or crenulate by projecting papillae; costa stout, excurrent as an apiculus; upper leaf cells rounded-hexagonal, moderately thick-walled, green and obscure, each cell with several large, circular papillae on both surfaces; basal cells slightly elongate, irregularly rectangular, smooth, hyaline. Sporophytes not seen.