Premise of research. Phylogenetic analyses have shown that tribe Melastomateae is biphyletic, consisting two nonsister clades, the core and Marcetia alliance, both supported by molecular morphological characters.Methodology. In this study, we describe new Marcetieae revise its generic limits based on a phylogeny reevaluation characters. A short description; notes distribution, habitat, taxonomy; list species plus an identification key are presented for all accepted genera.Pivotal results. We...

The Marcetia alliance of Melastomataceae is an exclusively Neotropical group that includes at least 12 genera mostly herbs and subshrubs, occurring in the cerrado central Brazil savannas Amazon region Guayana highlands. This study aimed to test monophyly alliance, evaluate their phylogenetic relationships generic boundaries, investigate morphological characters as potential synapomorphies for delimiting clades or genera. We used nuclear (ITS, ETS) plastid (accD-psaI, atpH-atpF, trnS-trnG)...

Poteranthera (Melastomataceae) is a genus of small, annual herbs with narrow leaves, that inhabit humid savannas in South America and are visible only when bloom. Due to their size paucity collections, the phylogenetic position has been uncertain this point. at times associated, confused, or placed Acisanthera and/or Siphanthera. Phylogenetic analyses based on DNA sequence data place unequivocally within Microlicieae not closely related Siphantera. These results consistent seed anther...

During the preparation of taxonomic review Comolia, some novelties were found. Here we describe Comolia paraensis, a new species endemic to Brazilian state Pará, preliminary categorized as Endangered. This occurs in campinas around Oriximiná and stony Amazonian savannas Monte Alegre Óbidos. paraensis is morphologically similar C. kuhlmannii veronicifolia, two entities that here considered distinct from villosa. illustrated, compared with species, notes on its geographic distribution...

Abstract— Fritzschia atropurpurea , an endemic new species from the Serra do Cipó, Espinhaço Range, Minas Gerais state, Brazil, is described and illustrated. This can be easily differentiated its congeners by combination of following characters: hirsute-glandular trichomes covering branches, petioles, leaves, bracteoles, pedicels, hypanthium, sepals, medial-apical portion right margin petals; membranaceous leaves with a dark purple abaxial surface; long pedicels. Images scanning electron...

ABSTRACT We evaluated the floristic and ecological attributes of a seasonal semideciduous forest remnant (SSF) (500-1,050 m) located in key area for biodiversity conservation. The importance fragment to ecosystem conservation was revealed by its species richness (253), diversity (Shannon index = 4.6; Simpson's complementary 0.98) evenness (Pielou 0.83), which are considered high values SSF. Zoochory occurred 77% species, indicating existence important biotic interactions that ensure...

Fritzschia Cham. is mainly distributed in the Brazilian Cerrado and, until now, was known from Federal District and states of Minas Gerais, Goiás, Mato Grosso do Sul. We present first record genus state Bahia, reporting sessilis (DC.) M.J.R.Rocha & P.J.F.Guim., a taxon previously considered endemic to Gerais state.

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Abstract— During a field expedition to the Serra do Cipó, Minas Gerais state, Brazil, we found new species of Fritzschia , genus endemic campos rupestres from Espinhaço Range. cordifolia has cordate and succulent leaves with an apical gland, petals glandular-ciliate margin, campanulate hypanthium, antesepalous stamens ventral appendages deltoid lobes. The presence seeds crested testa is reported here for first time in Fritzschia. A description illustration provided, as well its conservation...

During a floristic survey of Melastomataceae carried out in Delfinópolis and Capitólio, Minas Gerais State, Brazil, new species Fritzschia was found. furnensis has stems peeling thin, woody flakes, petiole 2–10 mm long, large leaf blades (23–38 × 10–29 mm) an indumentum glandular trichomes on the branches, petioles, leaves, bracteoles, pedicels, hypanthia, sepals. The is regarded as endangered (EN) due to restricted distribution, small populations destruction its habitat.

Here, we describe Microlicia ferricola, a newly discovered species exclusive to the Iron Quadrangle, Minas Gerais state. Additionally, provide an illustration plate, field images, occurrence map, and comparisons with its morphological relatives such as M. longicalycina, woodgyeriana, trichocalycina. This new is characterized by green-reddish reddish branches, leaves, hypanthia, sepals covered glandular trichomes, lanceolate elliptic-lanceolate setose at apices, campanulate-oblong...

Comolia is a neotropical genus currently represented by 10 accepted species. Since the description of genus, 47 names have been published within it. When investigating these names, we found that some them needed to be typified. The aim present study was provide nomenclatural treatment for Comolia, including list all synonyms related its species, typifications and comments, when necessary. Thirteen lectotypes one neotype are designated here. Six were lectotypified using two illustrations. In...

Abstract The Serra do Rola-Moça State Park is located in the central southern portion of Espinhaço Range, a region known as Iron Quadrangle Minas Gerais, Brazil. Here, we provide list Melastomataceae species recorded main vegetation types found park, along with identification keys and illustrated plates portraying them. Currently, 60 eight genera have been catalogued for park. Miconia richest genus area (24 spp.), followed by Microlicia (19 Pleroma (eight Cambessedesia (three Chaetogastra...

ABSTRACT We present novelties on the occurrence of species belonging to tribes Marcetieae, Melastomateae and Pyxidantheae (Melastomataceae) derived from revision herbarium material recent collections in Brazilian Amazon. report rediscovery type Comolia, known only original material, first records Appendicularia, Dicrananthera Blakea states Pará, Roraima Rondônia, respectively, record Pterogastra Brazil. provide maps with updated geographical distribution for each based available online...

Appendicularia is a neotropical genus of annual herbs, currently with four accepted species after recent inclusion three that were formerly placed in Ernestia. However, during nomenclatural studies on Marcetieae, we observed the combination A. rubra was mistaken, since its basionym Ernestia belongs to clade “Ernestia incertae sedis”. Here exclude from genus, reinstating it Ernestia, and consequently recognizing species. The type collections comments are provided, as well lectotypifications...

Este estudo visa ampliar o conhecimento sobre a família Melastomataceae na Serra do Cipó, Minas Gerais e, consequentemente, agregar novos dados ao projeto “Flora da Gerais”. Marcetieae é uma tribo recentemente descrita, representada no Brasil por 112 espécies e 18 gêneros, ocorrendo predominantemente savana amazônica, cerrado, campo rupestre mais raramente, em ambientes florestais. Até momento foram registradas Cipó 15 seis sendo Fritzschia gênero representativo com espécies, seguido...

A arborização urbana desempenha importantes funções ecológicas, estéticas e ornamentais. O conhecimento das espécies arbóreas nativas cultivadas de uma área pode potencializar as chances sucesso ações manejo conservação. Neste sentido, este estudo teve como objetivo realizar um levantamento quali-quantitativo da Universidade do Estado Minas Gerais (UEMG), no município Ibirité, elaborar chave identificação para espécies. Os indivíduos com CAP ≥ 15 cm foram marcados etiqueta enumerada,...