Stems with cortical cells small, walls somewhat thicker than those of central cells. Leaves loosely erect-spreading, some-what distant, incurved when dry, lightly to strongly falcate-secund near stem apices, concave in proximal 2/3, not undulate or plicate, 0.9-1.5 mm; marginal teeth single or double, often tipped with 1 papilla; apex gradually or sometimes abruptly narrowing, acumen flat, sharply pointed; costa slender, cristate distally; distal laminal cells linear-rhomboidal, 7.5-10:1, pellucid, walls thin. Seta 0.6-1.2 cm. Capsule black, 0.7-1.5 mm. Calyptra covering distal portion of urn. Spores 8-11µm, smooth.
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