<b>The genus <i>Senna</i> Mill. (Leguminosae: Caesalpinioideae) in a fragment of the Ecological Station Raso da Catarina, Bahia, Brazil

Abstract

ABSTRACT. Senna comprises about 300 species with circuntropical distribution, widely represented in the Americas, also occurring in Africa, Australia, Asia and Oceania. The Brazil includes 80 species, of which 27 are endemic, 50 reported from Bahia and 22 recorded from the Caatinga. The floristic survey of Senna in the Ecological Station Raso da Catarina included analysis of specimens collected March 2010 to October 2011. The analyses were supplemented with dried collections from the following herbaria: ALCB, EAC, HRB, HUEFS and MBM. Seven taxa were recorded. The most representative taxa in the area were Senna rizzinii H.S.Irwin & Barneby and S. acuruensis (Benth.) H.S.Irwin & Barneby var. acuruensis. The genus can be found in a variety of environments from preserved to degraded areas and in sandy, sandy-clayey or rocky soils. The taxonomic treatment includes anidentification key, descriptions, illustrations, photos, data of the geographical distribution, reproductive phenology and comments about the taxa.

O gênero Senna (Leguminosae-Caesalpinioideae) no município de Caetité, Bahia, Brasil

“…E m b o r a h a j a i n f o r m a ç õ e s s o b r e a diversidade de Senna no estado da Bahia (Lewis 1987;Queiroz 2009;Azevedo & Conceição 2017;Correia & Conceição 2017), estudos florísticotaxonômicos o abordando para o munícipio de Caetité, situado na região centro-sul da Bahia, são escassos. Fato preocupante, pois a vegetação de Caetité vem sendo modificada pelo desmatamento, queimadas, culturas irrigadas, atividades de mineração e produção de energia eólica (IBGE 2017).…”

Bignoniaceae in the Raso da Catarina Ecoregion, Bahia, Brazil

“…In addition, it also has the lowest number of conservation units and is one of the least protected in Brazil (Leal et al 2005). The most recent contributions about flora of Raso da Catarina Ecoregion are generally local floristic surveys of groups in specific areas, such as the works conducted by Melo & Andrade (2007); Melo et al (2010); Brito (2012); Lopes (2012); Dourado et al (2013); Varjão et al (2013); Vieira et al (2013); ; Lima & Conceição (2016); Santos et al (2016) and; Correia & Conceição (2017a, 2017b, with few floristic surveys covering all areas of the Ecoregion, such as ; Lima (2015); Vieira et al (2015); Amorim & Bautista (2016) and; Santos (2016).…”