1. Lado ventral de la hoja formando unsaco inflado ... Nowellia
1. Lado ventral de la hoja no formando una saco ... 2.
2. Hojas no divididaso ligeramente retusas ... Odontoschisma
2. Hojas conspicuamente bilobadas ... Cephalozia
1. Ventral side of the leaf forming an inflated sac ... Nowellia
1. Ventral side of the leaf not forming a sac ... 2.
2. Leaves undivided or shallowly retuse ... Odontoschisma
2. Leavesdistinctly 2-lobed ... Cephalozia