Distal leaves long-subulate beyond an ovate or obovate base, 1–2.2 mm, leaf base strongly differentiated in shape; distal laminal cells short- to long-rectangular. Sexual condition autoicous. Seta 0.1–0.4 mm. Capsule neck very short, flattened obovate. Spores pitted. Calyptra minutely papillose.
Phenology: Capsules mature late winter–spring.
Elevation: generally low elevations
Fla., Ga., La., N.C., S.C., Tex.
Bruchia carolinae is one of the smallest species of the genus, and the very short seta and papillose calyptra are diagnostic.