Hedwigia 46: 314. 1907.
Stems 2–2.5 cm, glossy green or yellowish brown, branches straight. Leaves erect to spreading, homomallous, slightly secund at stem and branch apices, 0.8–1.3 mm; margins erect, entire or finely dentate; apex abruptly slender-acuminate, subulate; alar cells quadrate, walls thin, region extending 1/3 leaf margin; distal laminal cells 25–40 × 4–7 µm, walls thin. Seta reddish, 0.5–1.5 cm. Capsule reddish, 1–1.5 mm. Spores 10–12 µm, minutely papillose.
Phenology: Capsules mature summer.
Habitat: Calcareous rock in forests, rarely on deciduous trees
Elevation: low to moderate elevations
Ala., Ariz., Ky., W.Va., Europe, Asia, Australia.
H. A. Crum and L. E. Anderson (1981) questioned the presence of Homomallium incurvatum in North America, as no voucher collections were available at that time. Since then, specimens have been collected in four states.