Distal leaves long-subulate beyond an ovate, obovate, or broadly elliptic base, 1-3.2 mm, leaf base strongly differentiated in shape; distal laminal cells long-rectangular. Sexual condition autoicous. Seta 0.2-0.7 mm. Capsule neck short, broadly obovate to truncate. Spores reticulate. Calyptra smooth.
The capsule of Bruchia drummondii is immersed in the perichaetial leaves or emergent, but not hidden by the leaf tips. This species is easily identified by the long-subulate leaves, relatively squat capsule, and reticulate spores.