Microlicia campostriniae and Microlicia subtilis (Lavoisiereae: Melastomataceae): two new species from Rio Preto State Park, Minas Gerais, Brazil

Abstract

Microlicia campostriniae Versiane & R.Romero and M. subtilis R.Romero & Versiane are two new species from the campo rupestre in Rio Preto State Park, Diamantina Plateau, Minas Gerais, Brazil. Here, we provide descriptions, illustrations, an occurrence map, preliminary conservation assessments, and comparisons with related morphological congeners for both species. M. campostriniae has the central vein of the adaxial surfaces covered with glandular trichomes, hypanthia and sepals densely covered with spherical glands mixed with long reddish glandular trichomes, triangular sepals, and flowers with pink petals and dimorphic stamens. M. subtilis has membranaceous leaf blades with dentate margins, hypanthia and sepals densely covered with spherical glands mixed with glandular trichomes and flowers with pink petals and dimorphic stamens. M. campostriniae is compared to M. amplexicaulis Cogn., M. ciliatoglandulosa R.Romero, M. obtusifolia Cogn. ex R.Romero and M. pumila R.B.Pacifico & Almeda, and M. subtilis with M. membranacea R.Romero & Versiane and M. schwackeana Glaz. ex Versiane & R.Romero. Additionally, we provide a checklist of the Lavoisiereae species in the Rio Preto State Park.