Stems 10-25 mm. Leaves clasping at base, infolded and twisted around the stem when dry, squarrose-recurved when moist, lingulate-ovate, 2.5-4 × 1-1.6 mm, canaliculate to keeled; margins tightly revolute in the proximal 3/4-7/8, entire; apices obtuse to acute; costa excurrent into a serrate, hyaline awn that is often brown, sometimes broadly hyaline at base, strongly papillose abaxially and serrate because of projecting cell ends, yellow-brown; basal cells abruptly differentiated, rectangular, 45-90 × 15-23 µm, quadrate to narrowly rectangular at the margins; distal cells quadrate to polygonal, 11-18 µm, with tall, bulging mammillae, bearing 1-2 papillae per cell, thick-walled and sometimes collenchymatous. Specialized asexual reproduction absent. Sexual condition dioicous. Seta brown, 12-18 mm. Capsule brown, 3-5 mm, curved, with an abrupt neck; operculum ca. 2 mm; peristome ca. 1.8 mm, the upper divisions twisted ca. 2 turns, yellow-brown, the basal membrane white, ca. 1/2 the total length. Spores 10-14 µm, papillose.
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