Richterago (Asteraceae, Gochnatieae) na porção central da Cadeia do Espinhaço em Minas Gerais, Brasil

Abstract

Resumo AbstractThe species of Richterago are endemic to the "campos rupestres" of Brazil, and occur mainly on rocky soils. This study presents a taxonomic treatment of Richterago Kuntze (Asteraceae) found in the central portion of the Espinhaço Range in Minas Gerais state, located in the municipalities of Congonhas do Norte (south), Olhos d'Água and Bocaiúva (north), including Serra do Cabral (west) and Diamantina Plateau (east). Specimens were collected from November 2009 to June 2012, and were deposited at the herbarium DIAM. Duplicates were sent to the herbaria ALCB, HUFU and SPF. Specimens from the herbaria HUFU and SPF were also studied. Morphological analysis and identifications were made based on available literature and consultation with taxonomic specialists. The genus is represented by eight species: Richterago amplexifolia (Gardner) Kuntze, R. angustifolia (Gardner) Roque, R. arenaria (Baker) Roque, R. conduplicata Roque, R. discoidea (Less.) Kuntze, R. elegans Roque, R. polyphylla (Baker) Ferreyra and R. radiata (Vell.) Roque. An identification key, descriptions, illustrations, and additional information on geographic distribution and conservation status of the species are presented.

A tribo Miconieae (Melastomataceae) no Parque Estadual do Biribiri, Diamantina, Minas Gerais, Brasil

“…Até recentemente a flora do Parque Estadual do Biribiri (PEB) era pouco conhecida, porém nos últimos anos, vem sendo alvo de inventários de importantes famílias de Angiospermas (Andrino 2013;Montini 2013;Franco et al 2014;Marques & Nakajima 2015), mostrando a alta diversidade da área. Dando continuidade aos estudos no parque, o presente trabalho apresenta o tratamento taxonômico da tribo Miconieae, fornecendo chave analítica de identificação para as espécies, descrições morfológicas, ilustrações e dados de distribuição geográfica.…”

Asteraceae en el Parque Estadual do Biribiri, Diamantina, Minas Gerais, Brasil: tribus Barnadesieae, Gochnatieae, Mutiseae, Nassauvieae y Wunderlichieae

“…A pesar de la gran importancia de los trabajos florísticos, la existencia de áreas que todavía no fueron estudiadas en determinadas regiones contribuye para el "impedimento taxonómico" (Nakajima & Romero 1999). Cuanto menor sea el número de estudios florísticos, menor el número de especialistas taxonómicos involucrados en estos estudios, y consecuentemente mayor será el desconocimiento de la flora y menos eficientes serán las políticas de preservación de las especies vegetales (Nakajima & Romero 1999, Funk 2006 Los estudios florísticos realizados con las compuestas en la Cadeia do Espinhaço (región de Minas Gerais) demuestran la importancia florística y biológica de esta familia para la región (Giulietti et al 1987, Hind 2003, Almeida et al 2014, Franco et al 2014, Marques & Nakajima 2015, Pirani et al 2015. Por lo tanto, el presente trabajo contribuye para el conocimiento de las tribus Barnadesieae D. Don, Gochnatieae Panero & V.A.…”

Geographic space, relief, and soils predict plant community patterns of Asteraceae in rupestrian grasslands, Brazil

“…In the Cerrado biome and, particularly, in these rupestrian grasslands, species of the Asteraceae are among the richest of all plant families (Giulietti et al., ; Nakajima & Semir, ). Many of these Asteraceae species are endangered (Franco, Costa & Nakajima, ; Roque & Pirani, ; Semir, Rezende, Monge & Lopes, ; Ribeiro‐Silva et al., ). In this work, it is hypothesized that both environmental heterogeneity and geographic distance determine the floristic and structural patterns of Asteraceae in the Espinhaço Range.…”