1. Byrsonimoideae W. R. Anderson, Leandra 7: 6. 1977 .

Type genus.

Byrsonima Rich. ex Kunth.

Diagnosis.

Posterior petal eglandular, fertile stamens 10 (occasionally 6–10 in Diacidia), pollen 3 - aperturate, zonoaperturate, colporate, styles apex subulate, mericarps smooth (i. e., never winged, or setose), chromosome number n = 6, presence of macrolactams and sulfenyl compounds.

Notes.

The subfamily Byrsonimoideae currently comprises the original three tribes published by Anderson (1977). However, tribe Byrsonimeae is re-circumscribed to exclude Burdachia, Glandonia and Mcvaughia, which made this tribe paraphyletic and are, thus, placed by us in their own tribe in Malpighioideae . In its new circumscription, Byrsonimoideae comprises nine genera and 243 species (91 threatened species; Suppl. material 1) of shrubs and trees endemic to the Americas.