Drummondia prorepens (Hedw.) E.Britton

Plants olive green, dark green, or yellow-brown. Stem leaves channeled, concave, 1.1-1.8 mm; apex sometimes incurved; costa broadly channeled; alar cells yellow, ± inflated at marginal insertion; basal laminal cells 6-10 µm. Perichaetial leaves closely clasping seta, broadly lanceolate, to 2 mm, apex acute or acuminate, basal laminal cells rectangular, yellowish green. Seta dextrorse. Capsule 0.9-1.3 mm, sharply contracted to seta, neck absent; exostome teeth 3-6 cells high, rudimentary, truncate. Spores rounded-quadrate to elliptic-rectangular, 70-100 µm in longest dimension, almost smooth, brown.