10. Calymperes tahitense (Sull.) Mitt. 海岛花叶藓 hai-dao hua-ye xian
J. Linn. Soc. Bot. 10: l72. 1868. Syrrhopodon tahitensis Sull., U.S. Expl. Exp. Wilkes Musci 6. 1860. Type. Tahiti, collector ? (holotype FH; isotype BM).
Plants robust, dark green, blackish proximally, in tufts and cushions. Stems elongate, often forked; rhizoids glossy dark red. Leaves monomorphic, somewhat curled-contorted when dry, straight and erect-spreading when wet, oblong-lanceolate to broadly linear above somewhat or not broader base, mostly 5–7 mm long, axillary hairs inconspicuous; costa extended beyond broad portion of upper laminae, with narrow, revolute, lateral wings of laminae as in C. afzelii; cells of upper laminae isodiametric, small, obscure, smooth abaxially, bulging adaxially; margins strongly thickened distally, inconspicuously toothed proximally, coarsely toothed distally, teniolae very conspicuous, often marginal or nearly so at shoulders; cancellinae broad distally, their distal cells characteristically interfingering among adjacent green cells of upper laminae. Gemmae common, borne adaxially on modified club-like tip of costa. Sporophytes not seen.