Stem leaves patent-erect, spreading, concave, occasionally plicate, lamina 2-stratose distally (appearing multistratose in extreme forms), 1-stratose at base; proximal leaves ovate to deltoid, long-acuminate, 0.18-1.1 × 0.1-0.28 mm, entire proximally, serrulate distally; distal stem leaves deltoid to ovate, long-acuminate, 0.58-1.88 × 0.15-0.35 mm, entire proximally, serrulate distally along the margin of the acumen to serrate with anteriorly projecting cell ends on the abaxial surface of costa; costa broad, percurrent. Sexual condition paroicous, 1-2(-3) antheridia naked or subtended by 1(-2) bracts in the distal leaf axils proximal to the perichaetium, generally in 1-2 leaf axils per stem. Perichaetial leaves with oblong-ovate to lanceolate base, gradually to abruptly narrowed to a subulate to acuminate tip, 1.25-4.3 × 0.25-0.5 mm, margins entire proximally, plane to incurved, entire to irregularly serrulate distally especially along margin of acumen, marginal cells short-rectangular to quadrate; basal cells loosely rectangular to quadrate; median cells subquadrate to rectangular to trapezoidal; distal cells in acumen linear; costa percurrent, indistinctly defined, filling the cucullate acumen; transverse section of costa at mid leaf showing a row of central guide cells confluent with the adaxial laminal cells, a widespread abaxial band of stereids, a restricted adaxial group of stereids, and a few thin-walled accessory cells in the center; innermost perichaetial leaves long-lanceolate with an acuminate tip, percurrent, 1.13-2.6 × 0.11-0.25 mm. Seta 0.075-0.5 mm. Spores 20-30(-35) µm, densely papillose, light orange-brown in mass.
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