Four new species of Anthurium (Araceae) from Bahia, Brazil

Abstract

Anthurium morii, A. raimundii, A. talmonii and A. zappiae are proposed as new species from the state of Bahia in north-eastern Brazil. A. raimundii occurs in the restinga vegetation of the Bahian Atlantic Forest region, while the other three species are from the seasonally dry campo rupestre vegetation of the interior of the state. Descriptions, illustrations and IUCN conservation ratings are provided for each species.

Anthurium viridivinosum sp. nov. (Araceae; A. sect. Urospadix subsect. Flaviscentiviridia) from a sedimentary coastal plain in southeastern Brazil

“…Besides being inserted in a conservation unit, the restinga fragments and the lowland rainforest on this region have extremely high importance to biodiversity conservation, suffering threats such as native vegetation suppression and real estate expansion on the coast line (Brasil ). Anthurium viridivinosum is the ninth species of Anthurium distributed along the restingas in Espírito Santo (Valadares et al , Haigh et al ), and the description of this new species highlights the priority actions proposed by IPEMA (), that includes floristic inventories to survey for future adjustments in conservation actions in the state. Living material of this new species is being grown at Universidade Federal do Espírito Santo.…”

IAPT chromosome data 40

“…It has a chromosomal number of 2n = 30 + 1B, with a symmetrical karyotype composed of metacentric and submetacentric chromosomes, in addition to an euchromatic B chromosome that is not very differentiated from the other chromosomes in the complement. The species was described just over 12 years ago based on materials collected in the southern part of the state of Bahia (Haigh & al., 2011). Anthurium scandens is an epiphytic species that occurs in the Antilles and the American continent, from southern Mexico to Brazil (Sheffer & al., 1980), where it is reported in the Northern, Northeastern, Southeastern, and Southern regions (Coelho & al., 2023).…”

Chromosomal variability in Brazilian species of Anthurium Schott (Araceae): Heterochromatin, polyploidy, and B chromosomes

“…The genus is taxonomically complex and subdivided into 18 sections (Croat and Sheffer, 1983) showing wide intra- and interspecific morphological diversity (Coelho and Mayo, 2007). The plants can have a terrestrial habit in the case of forest species, or be rupiculous, epiphytic, or hemiepiphytic vines, but they are rarely found in aquatic environments (Coelho et al , 2009; Gonçalves and Jardim, 2009); there are numerous helophytic species that can be found growing on exposed rock surfaces (Gonçalves, 2005; Haigh et al , 2011). The genus is monophyletic, with 18 clades that are easily distinguishable morphologically or geographically, and show low divergence in their trnG intron, trnH-psbA and trnC-ycf6 sequences, and in the CHS intron regions of their DNA, suggesting a rapid radiation of the group (Carlsen and Croat, 2013).…”