Miconia lucenae (Melastomataceae), a new species from montane Atlantic Forest in Espírito Santo, Brazil

Abstract

We describe Miconia lucenae R.Goldenb. & Michelang., a new species from the montane Atlantic Forest in Santa Teresa in the state of Espírito Santo. Our analysis, based on three plastid spacers (atpF -atpH, psbK -psbl and trnS-trnG), one plastid gene (ndhF, not available for M. lucenae), and two nuclear ribosomal loci (nrITS and nrETS), showed that it belongs to a small clade with Miconia paradoxa (Mart. ex DC.) Triana (Minas Gerais) and M. michelangeliana R.Goldenb. & L.Kollmann (Espírito Santo). The three species in the ''Paradoxa clade'' can be recognized by the plants with glabrous or glabrescent branches and leaves, white petals and yellow stamens, these with the connectives not prolonged below the thecae, ventrally unappendaged, dorsally unappendaged or with a minute tooth, the latter bilobed or not, glabrous ovary, and the fruits with a persistent calyx. Miconia lucenae can be recognized, among the species in this clade, by the shrubby plants with terete young branches, short inflorescences, usually with red axes, and the 2-bracteolate, sessile, 4-merous flowers, with a ciliolate inner portion of the sepals, lanceolate petals, and 4-celled ovaries. This species can be considered as endangered according to IUCN criteria.

Melastomataceae of the Parque Natural Municipal de São Lourenço, Espírito Santo, Brazil

“…It occurs in Montane Ombrophilous Dense Forest and can be recognized by glabrous leaves with cordate base and tetramerous flowers with yellow anthers. This species was recently described (Goldenberg et al 2020d) and is endemic to the state of Espírito Santo (Goldenberg et al 2020c). In PNMSL it was sampled with fruits in February.…”

The genus Ipomoea (Convolvulaceae) in the state of Rio Grande do Norte, Brazil

“…These numbers are based on initial studies in areas of dense ombrophilous forest (Goldenberg & Reginato 2006;Iglesias & Dutra 2017) and restinga (Souza et al 2016), followed by more detailed studies of Miconia (Bacci et al 2016), Behuria, Cambessedesia, Dolichoura, Huberia and Merianthera (Bochorny & Goldenberg 2017) and Bertolonia (Bacci et al 2017). Further, the family is also notable for its strong regional endemism (e.g., Goldenberg & Tavares 2007;BFG 2018;Goldenberg & Reginato 2009;Goldenberg & Kollmann 2010Camargo & Goldenberg 2011;Caddah & Goldenberg 2012;Bacci & Goldenberg 2015;Iglesias et al 2016;BFG 2018;Bacci et al 2020;Goldenberg et al 2020).…”

Flora of Espírito Santo: tribe Microlicieae (Melastomataceae)

“…The family has been the subject of floristic treatments in several localities in the state (Goldenberg & Reginato 2006;Meirelles & Goldenberg 2012;Iglesias & Dutra 2017). Furthermore, a substantial amount of new species were described in the last 20 years (Guimarães & Goldenberg 2001;Goldenberg & Reginato 2007Goldenberg & Tavares 2007;Tavares et al 2008;Goldenberg & Kollmann 2010, 2016Camargo & Goldenberg 2011;Meirelles et al 2012;Caddah & Goldenberg 2012Bacci et al , 2020Iglesias et al 2016;Bochorny & Goldenberg 2019;Bisewski et al 2020;Goldenberg et al 2020b). For the Flora of Espírito Santo, there are treatments for the genera Behuria, Cambessedesia, Dolichoura, Huberia, and Merianthera (Bochorny & Goldenberg 2017), Bertolonia (Bacci et al 2017), and Miconia .…”