Bryologist 63: 43. 1960
Illustrator: Patricia M. Eckel
Phenology: Capsules mature summer.
Habitat: Rotten logs, tree bark, charred wood, moist live-oak hammocks
Elevation: low elevations (0 m)
Distinctive gametophytic traits of Acroporium smallii include long-ovate leaves with erect margins, linear medial laminal cells, and alar cells much inflated and sharply differentiated from more distal cells. The species is confined to Miami-Dade County.