Key to the Genera of Ericaceae in Rio Grande do Sul state, Brazil 1. Leaf blade with apical callous gland; ovary inferior; fruit drupoid (nuculanium) ........................................................... Gaylussacia - Leaf blade without apical callous gland; ovary superior; fruit a capsule ...........................................................................................2 2. Leaf apex mucronulate, venation reticulodromous; anthers truncate, the filaments geniculate; fruiting calyces dry, obscure, the capsule naked.......................................................................................................................................................................... Agarista - Leaf apex acute without mucro or callous gland, venation brochidodromous; anthers bifid, the filaments erect; fruiting calyces fleshy, surrounding the capsule .......................................................................................................................................... Gaultheria

Published as part of Dalastra, Claudenice Hilda & Heiden, Gustavo, 2022, Ericaceae in Rio Grande do Sul state, Southern Brazil, pp. 149-190 in Phytotaxa 564 (2) on page 151, DOI: 10.11646/phytotaxa.564.2.2, http://zenodo.org/record/7087201