Leaf apiculus sometimes lacking; costa percurrent or ending short of the leaf apex; adaxial distal laminal cells mammillose, smooth on both surfaces.

Capsules mature in winter to spring (April). Thin crusts on limestone rock; low elevations; [Calif.], Fla.; Mexico, West Indies in Cuba, Jamaica, Central America in Guatemala, Honduras, South America in Brazil.

The extensive variation involving this poorly distinguished variety was described by R. H. Zander (1983); specimens of intermediate morphology can be found both from Mexico and those that derive from the flora region. All specimens of this variety seen from Florida regularly had two stereid bands and a hydroid strand in the costa, characters displayed even in minute specimens. The California collection cited by R. H. Zander (1983) could not be located.