Conostomum pusillum var. pusillum

Autoicous. Loose or dense tufts on soil. Stems erect, 2–12 mm long, simple in sterile plants, branching near apex in fertile plants, pale brown, covered at base with yellow- or red-brown rhizoids. Leaves not in distinct ranks, erect when moist, not altered when dry, linear-lanceolate, 1–2 mm long, 0.15–0.2 mm wide; apices acuminate; costae long-excurrent to form yellow, finely serrulate awn; margins serrulate in apical half, narrowly recurved in apical half, without a border; laminal cells mostly 18–45 μm long, 6–10 μm wide, prorate, becoming smooth and longer (to 75 μm long) at base. Setae 9–25 mm long, yellow-brown. Capsules erect to inclined or, rarely, pendent, globose to ovoid, asymmetric, 1.5–2.3 mm long. Operculum rostrate, 0.7–1 mm long. Peristome single, of 16 teeth.