Asteraceae no Município de Mucugê, Chapada Diamantina, Bahia, Brasil

Abstract

ResumoLevantamentos florísticos de Asteraceae na Cadeia do Espinhaço têm confirmado uma significante riqueza de espécies e de endemismos dessa família para as vegetações campestres. O presente trabalho tem como objetivo realizar um inventário florístico de Asteraceae no município de Mucugê, Bahia, oferecendo subsídios para o reconhecimento da família na região. As coletas têm sido realizadas na região há pelo menos uma década e meia cobrindo grande parte da área do Município. Foram estudados também os materiais provenientes dos herbários ALCB, CEPEC, HRB, HUEFS, MBM, NYBG, RB, SP, SPF e UB. A família Asteraceae está representada em Mucugê por 18 tribos, 78 gêneros e 167 espécies. As tribos com maior número de espécies são Eupatorieae (49 spp.), Vernonieae (46 spp.), Astereae (18 spp.) e Heliantheae (11 spp.). Dos gêneros registrados, cinco são monoespecíficos (Pseudostifftia, Platypodanthera, Bahianthus, Conocliniopsis e Prolobus) e cinco são endêmicos da Bahia (Pseudostifftia, Stylotrichium, Lasiolaena e Semiria). Dentre os gêneros com maior riqueza, destacam-se Baccharis (17 spp.), Lychnophora (11 spp.), Mikania (10 spp.), Lepidaploa e Lessingianthus (7 spp.) cada. São apresentadas chaves de identificação para as tribos, gêneros e espécies, comentários taxonômicos e distribuição geográfica para cada táxon, além de ilustrações e fotos. Palavras-chave: Cadeia do Espinhaço, campo rupestre, florística, endemismo. AbstractFloristic surveys of the Asteraceae in the Espinhaço Range have showed a significant species richness and endemisms in this family for the grassland vegetation. Thus, this study aims to survey the floristic inventory of the Asteraceae in the municipality of Mucugê, Bahia, providing subsidies for an updated taxonomic recognition of the family in the region. Field collections have been conducted for at least a decade and a half covering much of the area. We also analyzed the material from the herbaria ALCB, CEPEC, HRB, HUEFS, MBM, NYBG, RB, SP, SPF and UB. Asteraceae is represented in Mucugê by 18 tribes, 78 genera and 167 species. The tribes with the greatest number of species are Eupatorieae (49 spp.), Vernonieae (46 spp.), Astereae (18 spp.) and Heliantheae (11 spp.). Five of the genera are monospecific (Pseudostifftia, Platypodanthera, Bahianthus, Conocliniopsis e Prolobus) and five are endemic to Bahia (Pseudostifftia, Stylotrichium, Lasiolaena and Semiria). The genera with highest number of species are Baccharis (17 spp.), Lychnophora (11 spp.), Mikania (10 spp.), Lepidaploa and Lessingianthus (7 spp.) each. Identification keys to the tribes, genera and species, followed by taxonomic comments and geographic distribution for each taxon, and illustrations and images are presented.

Asteraceae in the northern Espinhaço Range, Brazil: richness, endemism and conservation

“…1). Corroborating previous oristic surveys in Espinhaço Range (Giulietti et al 1987;Hind 1995;2003;Zappi et al 2003;Moura & Roque 2014;Campos et al 2016;Roque et al 2016), Eupatorieae and Vernonieae were the most diverse tribes with 30 and 28 species respectively, and together comprise 50 % of the local diversity of Asteraceae. Heliantheae was the third most diverse tribe with 19 species, representing about a third of Heliantheae species registered in the state of Bahia by Alves & .…”

“…e greatest diversity of Asteraceae is in areas of cerrado (savanna), campos rupestres Asteraceae of Morro do Chapéu, Bahia, Brazil: richness, endemism and conservation (rocky elds), campos sulinos (southern grasslands), caatinga and restinga (sand dunes) (Hind & Miranda 2008). Floristic surveys carried out in the Espinhaço Range have shown high species richness for Asteraceae, but particularly for Eupatorieae and Vernonieae, the most speciose tribes, followed by Helianteae and Astereae (Harley & Simmons 1986;Giulietti et al 1987;Grandi et al 1988;Pirani et al 1994;Hind 1995;2003;Guedes & Orge 1998;Zappi et al 2003;Hatschbach et al 2006;Moura & Roque 2014;Campos et al 2016;Roque et al 2016). ese studies have con rmed that many species are common, yet have distributions restricted to the Espinhaço Range, whereas other species are micro-endemic to only one region, either in the state of Bahia or Minas Gerais (Giulietti et al 1987;Giulietti & Pirani 1988;Harley 1995).…”

“…Approximately 125 genera and 500 species of Asteraceae have been documented in the campos rupestres of Espinhaço Range, of which 10 genera and about 75 species are endemic to Chapada Diamantina in Bahia (Roque et al 2016). us, the focus of the present study was to perform a oristic inventory of Asteraceae and identify endemic records for the municipality of Morro do Chapéu in Chapada Diamantina, Bahia, Brazil.…”

Contributions to the floristic and vegetation knowledge of Espinhaço Septentrional, Bahia, Brazil

“…The biodiversity of SGLA is poorly known (MMA 2007) because the majority of the floristic and ecological research have been limited to the southern Espinhaço, Minas Gerais (Giulietti et al 1987;Rapini et al 2002;Pirani et al 2003;Forzza et al 2013;Zappi et al 2014) and the Chapada Diamantina (Bahia) ranges (Harley 1995;Zappi et al 2003;Harley and Giulietti 2004;Roque et al 2016).…”

Diversidad y distribución de los endemismos de Asteraceae (Compositae) en la Flora del Ecuador

“…Su distribución es cosmopolita, excepto en la región Antártica (Funk et al, 2005;Aranguren et al, 2008) y muestra un amplio espectro altitudinal, con un predominio en las regiones templadas (Beltrán, 2016) y en las regiones cálidas y semiáridas de los trópicos y subtrópicos (Roque et al, 2016); su diversidad decrece en los bosques tropicales (Beltrán, 2016). Concentran su diversidad en los Andes de Sudamérica (Funk et al, , 2005Aranguren et al, 2008), particularmente en los páramos (Aranguren et al, 2008) que son uno de los ecosistemas más recientes de los Andes (2,5-3,0 Ma;cf.…”