Plants small, bright to dark green, olive green, or rarely red-green. Stems 0.5-2 cm, evenly foliate, ± julaceous, innovations rosulate. Leaves of main rosette and innovations similar, ± imbricate when dry, sometimes slightly twisted and more loosely set, erect when moist, ovate to obovate, concave, 0.5-1.5 mm; base decurrent or not; margins plane or sometimes recurved to mid leaf, serrulate distally, limbidium present, of 1 or 2 rows of cells; apex broadly acute to acute; costa long-excurrent, awn sometimes hyaline, stout, straight to somewhat twisted when dry; proximal laminal cells short-to long-rectangular; medial and distal cells short-rhomboidal, 14-30 µm wide, 3-4:1, walls thin to thick, not porose. Specialized asexual reproduction very rare, by rhizoidal tubers, brown, (100-)150-200 µm. Sexual condition dioicous. [Capsule strongly nutant, red-brown, pyriform, 2-3 mm].
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