Plants gregarious or tufted, dark-green to yellowish brown, uncinate-curved at tips when dry, to 10 mm. Leaves dimorphic, the vegetative 3-4 mm; distal lamina lanceolate; margins thickened and toothed distally; costa in cross section showing ad- and abaxial bands of stereid cells; medial cells obscure, 5-6 µm, bulging adaxially, minutely papillose abaxially; teniolae prominent at leaf shoulders and above; cancellinae ending in acute angles distally, adaxial cells smooth distally; gemmiferous leaves with constricted apices consisting of the costa with narrowly revolute marginal laminae, bearing gemmae only on adaxial surface of apex.
1. Calymperes afzelii Swartz 梯网花叶藓¶ ti-wang hua-ye xian Jahrb. Gewächsk. 1: 3. 1818. Type. Africa: Afzelius s.n. (holotype BM–herb. Hampe). Plants dark green, sometimes forked, in low dull tufts and cushions. Stems evident; rhizoids glossy dark red. Leaves essentially monomorphic, vegetative leaves grading into gemmiferous leaves, contorted-curled when dry, bases often conspicuous, with metallic gloss, erect-spreading and straight when wet, oblong-lanceolate to acuminate above broader base, to 4–5 mm long; axillary hairs inconspicuous; costa percurrent, in gemmiferous leaves protruding beyond expanded portion of upper laminae, with narrow wings of laminae revolute along its flanks; cells of upper laminae small, obscure, isodiametric, nearly smooth to papillose abaxially, bulging to mammillose-papillose adaxially; margins thickened and toothed distally; teniolae conspicuous; cancellinae typically acute distally, their distal cells plane, sharply and evenly demarcated from adjacent green cells of upper laminae; gemmae common, borne on adaxial tips of costa, gemma receptacle sometimes evident. Sporophytes not seen.