Plants 1-2(-4) cm. Stems reddish brown or dark red. Leaves pale to dark green, usually contorted and spirally twisted when dry, obovate, elliptic, or sometimes obovate-spatulate, 2.5-3.5(-4.5) mm; base short-or rarely long-decurrent; margins green, 1-or 2-stratose, toothed in distal 1/3 of leaf, rarely to below mid leaf or entire, teeth paired or single, small, blunt, sometimes indistinct, occasionally long and sharp; apex acute or rounded-acute, apiculate or rarely cuspidate, cusp toothed; costa percurrent or occasionally subpercurrent, distal abaxial surface smooth or toothed; medial laminal cells elongate or sometimes oblong, (20-)25-40(-50) µm, smaller near margins, in diagonal, sometimes longitudinal rows, weakly or not collenchymatous, walls pitted, blue postmortal color absent; marginal cells short-linear or rhomboidal, sometimes mixed with linear cells, in 2 or 3 rows. Sexual condition dioicous. Seta single. Capsule yellow-brown, 2-3(-4) mm; operculum rostrate, rostrum strongly bent when dry; exostome brown, sometimes dark reddish brown. Spores 15-24 µm.
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