A revision of the genus Aloina in the Mediterranean region and neighbouring
areas reveals 7 species: Aloina aloides, A. ambigua, A. bifrons, A. brevir
ostris, A. humilis, A. obliquifolia, and A. rigida. An identification key i
s provided. Aloina rigida var. mucronulata and A. rigida var. obliquifolia
are synonymized and elevated to the rank of species as A. obliquifolia. Lec
totypes for A. brevirostris, A. rigida and A. ambigua, and epitypes for A.
rigida and A. ambigua are proposed.