A New Bristle-leaved Species of Sauvagesia (Ochnaceae) Endemic to the Espinhaço Range, Brazil

Abstract—

The new species Sauvagesia setulosa (Ochnaceae) is described from campo rupestre vegetation of the Espinhaço range, Minas Gerais, Brazil. The corona-like, fused internal staminodes are key to place the new species within Sauvagesia subsect. Vellozianae, a mostly endemic lineage in the Espinhaço range. The combination of bristle-glandular leaves, terminal, umbel-like inflorescences, and flowers with white petals in S. setulosa are unprecedented in any species of Brazilian Sauvagesia. We present a complete description, illustration, distribution map, and a comparative table to morphologically differentiate the new species from the remaining species of Sauvagesia subsect. Vellozianae that bear terminal, umbel-like inflorescences.