Orchidaceae no município de Jacobina, estado da Bahia, Brasil

Abstract

-(Orchidaceae in the municipality of Jacobina, Bahia State, Brazil). This paper aimed to develop a floristic survey of Orchidaceae for the municipality of Jacobina, Chapada Diamantina, Bahia State, Brazil. Samples were collected during five field trips (2011)(2012) and the specimens from ALCB, CEPEC, HRB, HUEFS, SP, and SPF herbaria were analyzed. Twenty-eight species and 20 genera were found, with Epidendrum (five species) and Cyrtopodium (four species) being the richest genera. Four new records were recognized for Chapada Diamantina (Aspidogyne argentea, Baptistonia nitida, Catasetum purum and Cyrtopodium holstii) and one for Bahia State (Wullschlaegelia aphylla). Using Jaccard's index and UPGMA, the comparative analysis of the orchid floras among localities of the Espinhaço showed that the localities of Bahia State formed a distinct group from Minas Gerais State, and municipality of Jacobina presented greater similarity to Morro do Chapéu (J = 0.24). Geographic proximity and phytophysiognomy can be factors to explain the pattern of clustering. An identification key and geographic distribution of species, including taxonomic and biological comments are presented.

New distribution records of Catasetum confusum G.A. Romero-González (Cymbidieae, Epidendroideae, Orchidaceae) from Brazil

“…(Azevedo & van den Berg 2007, Bastos & van den Berg 2012a, b, Buzatto & Machado 2011, Vieira et al 2014, and Toscano de Brito 1995, 2005. The material recorded from Bahia is deposited in CEN and was collected in 2006 in an area of riparian forest in the municipality of São Desidério, in extreme western Bahia, which borders Tocantins state and is within the Cerrado biome.…”

Mapping Threats to the Orchid Populations in an Environmental Protection Area in Bahia, Northeast Brazil

“…Orchids are generally ornamental and floristically very prominent, since they are usually among the most species rich families of several biomes, such as in the Cerrado and in the Atlantic Forest, in the tropical and subtropical regions of Brazil (Giulietti et al 1987, Alves & Kolbek 2009, Lima et al 2011. Surveys of Orchidaceae in the state of Bahia in Northeast Brazil became more frequent in the 1990s, which revealed new occurrences for the state (Silva 2002, Ribeiro et al 2005, Vieira et al 2014, although their focus was on rocky outcrop vegetation (campo rupestre in Portuguese) mainly in the Chapada Diamantina region (see Azevedo & van den Berg 2007). Notwithstanding, plant conservation in several areas is of great concern, such as Área de Proteção Ambiental das Lagoas e Dunas do Abaeté (APA Abaeté), an Atlantic Forest conservation unit.…”

What are the species of phorophytes of Vanilla palmarum (Orchidaceae) in Brazil? An assessment of emblematic specificity with palm tree species

“…Becc. (Bastos & van den Berg 2012;Vieira et al 2014;Castro et al 2016), but the actual number of species that host V. palmarum has not been investigated. In the present study, we provided a list of phorophyte species associated with V. palmarum and briefly discussed future implications for the maintenance of this epiphyte-phorophyte interaction.…”