This work presents an analysis of the pollen grains of six taxa of the genera Brunfelsia: B. bonodora (Vell.) J.F. Macbr., B. brasiliensis (Spreng.) L.B. Sm. & Downs var. brasiliensis, B. brasiliensis subsp. macrocalyx (Dusén) Plowman, B. hydrangeiformis subsp. capitata (Benth.) Plowman, B. latifolia (Pohl) Benth. e B. uniflora D. Don. The pollen grains were treated with ACLAC 60% (except the pollen grains of B. latifolia that were submitted to acetolysis). Afterwards, they were measured and photographed by light microscopy and SEM. The analysis under SEM was used to check the sculpturing of the exine. It was observed that the pollen grains are medium or large; isopolar; suboblate or oblate spheroidal; the amb is subcircular, square to pentagonal; the polar area is very small to large; 3-5-colporate; the sexine is variably rugulated, but best visualized in SEM.
Pollinic morphology; Brunfelsia; Solanaceae
