Plants minute, 1-3(-5) mm, ephemeral, solitary or gregarious, yellow-green to pale green. Stems mostly simple or sometimes with 2-4 short fertile branches from distal stem leaves, sterile innovations absent. Stem leaves similar to perichaetial leaves but usually smaller, reduced proximally to bracts, erect-spreading or loosely spreading, triangular to linear-lanceolate, acute or broadly obtuse; costa weak, not reaching apex or occasionally absent; laminal margins plane, smooth; median and distal laminal cells of distal stem leaves rectangular, 3:1, 35-45 × 15-20 µm, slightly broader and laxer proximally but not conspicuously different. Perichaetial leaves erect-spreading or loosely spreading, triangular to linear-lanceolate, acute or broadly obtuse; costa weak, not reaching apex or occasionally absent; laminal margins plane, smooth; median and distal laminal cells elongate-rectangular to rhomboidal, 3-5:1, 50-130 × 13-24 µm, distally somewhat smaller, proximal cells rectangular, wider than median and distal cells. Specialized asexual reproduction absent. Sexual condition synoicous, antheridia and archegonia intermixed. Capsule terminal, 350-650 µm. Spores typically 32(16-48) per capsule, 115-175 µm, smooth or papillose, pale green to yellow or yellow-brown.
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