O clado Merianthera e as tribos Merianieae e Microliceae (Melastomataceae) na Serra Negra, Minas Gerais

Abstract

ResumoApresenta-se um estudo taxonômico do clado Merianthera e das tribos Merianieae e Microlicieae (Melastomataceae) na Serra Negra, localizada no Complexo da Mantiqueira, região sul da Zona AbstractA taxonomic study of the clade Merianthera and the tribes Merianieae and Microliceae (Melastomataceae) of Serra Negra, located in the southern region of Zona da Mata of Minas Gerais, Brazil, is presented. The clade Merianthera is represented by Behuria parvifolia, Huberia nettoana and Cambessedesia hilariana, Merianieae is represented by Meriania claussenii, while Microlicieae is represented by Lavoisiera imbricata, Microlicia serpyllifolia, Rhynchanthera dichotoma, Trembleya elegans, Trembleya parviflora and Trembleya phlogiformis. The region is suffering environmental impacts due to Pinus and Eucalyptus planting, real-state speculation, disorganized visitation, illegal collection of plants, as well as the use of forest remnants and field areas for grazing. Regarding conservation, it should be highlighted the species B. parvifolia, H. nettoana and M. claussenii, probably threatened with extinction at regional or national levels. Identification keys, descriptions, illustrations, information on the geographical distribution and morphological comments for taxa of these groups in Serra Negra are presented.

Passiflora purii (Passifloraceae), a new species in honor of the originating peoples of Serra da Mantiqueira, Southeastern Brazil

“…In recent years, the flora of Serra Negra da Mantiqueira has been intensively studied (Abreu et al 2011;Mezzonato-Pires et al 2013;Monteiro 2013;Gonzaga et al 2014;Cabral et al 2016;Justino et al 2016;Miloski et al 2017;Mota et al 2017;Cardoso et al 2018). Nevertheless, at present, we are not aware of any other locality in the region where this new species may occur.…”

Systematics of the Trembleya sensu stricto clade of Microlicia (Melastomataceae, Lavoisiereae)

“…The morphological variation found in M. parviflora is mainly related to leaf blade shape (varying from elliptic to ovate and lanceolate), indumentum on branches and abaxial leaf surface (always glandular-punctate, usually pruinose, eventually sparsely to densely covered with gland-tipped or eglandular trichomes 0.1-0.9 mm long) and inflorescence development (three-to many-flowered). The petals are usually white flushed with pink at the base, although some populations have entirely white petals, for example, in Serra de Carrancas (Matsumoto and Martins 2005) and Serra Negra (Justino et al 2016) in Minas Gerais. Based on descriptions of M. parviflora in local floras, magenta-flowered and white-flowered variants of this species occur together in Poços de Caldas and Paque Estadual do Ibitipoca, both in Minas Gerais.…”

Verbenaceae na Serra Negra, Minas Gerais, Brasil

“…Vários estudos foram realizados na região da Serra Negra com o objetivo de ampliar o conhecimento de sua diversidade vegetal (Menini Neto et al 2009;Abreu et al 2011;Feliciano & Salimena 2011;Matozinhos & Konno 2011;Valente et al 2011;Blaser et al 2012;Dutra et al 2012;Souza et al 2012;Mezzonato-Pires et al 2013;Salimena et al 2013b;Gonzaga et al 2014;Cabral et al 2016;Justino et al 2016). Dando continuidade aos estudos florísticos na Serra Negra, o presente trabalho apresenta um estudo taxonômico das espécies de Verbenaceae, incluindo descrições, ilustrações, chaves de identificação, comentários de distribuição geográfica, ecológicos e taxonômicos, contribuindo com a ampliação do conhecimento florístico na região e no estado de Minas Gerais.…”