Plants medium-sized to large, in loose to dense tufts, yellowish brown to dark green. Stems erect, simple or sparingly branched; rhizoids smooth, scattered along stems or present on branch bases. Leaves gradually or abruptly narrowed, tubulose to subtubulose proximally, weakly concave to subtubulose distally, lamina 1-stratose, acute, erect-flexuose to falcate-secund, occasionally somewhat spreading, sometimes somewhat auriculate at base; margins incurved, serrulate to nearly entire near apex; leaf apex setaceous; costa single, excurrent, broad, filling 1/5-1/2 of leaf base and most of subula, sometimes indistinct, rough distally on abaxial surface, rhizoids at base occasionally on adaxial and commonly on abaxial surfaces, with a median row of guide cells, two stereid bands, epidermal cells differentiated on both surfaces; cells incrassate nearly throughout, distal rectangular to linear, smooth or prorate on abaxial surface, becoming broader toward base, often pitted, alar cells thin-walled, inflated, hyaline or sometimes reddish. Specialized asexual reproduction by deciduous leaves. Sexual condition dioicous. Perigonial leaves broad at base, more abruptly narrowed to a shorter setaceous apex than stem leaves, paraphyses filamentous, antheridia few. Perichaetial leaves often with broader and longer bases more abruptly narrowed distally than stem leaves, paraphyses absent, archegonia few. Seta solitary, smooth, elongate, curved to cygneous, erect-sinuous when dry. Capsule erect and symmetric, oblong-cylindric, smooth; annulus and stomata absent; operculum long-rostrate; peristome single, teeth 16, inserted below mouth, divided nearly to base, vertically striolate nearly to tips. Calyptra cucullate, smooth, entire at base, naked. Spores spherical, smooth.
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