Delimitation of the Alcantarea extensa complex (Bromeliaceae) and a new species from Espírito Santo, Brazil

Abstract

The species complex related to Alcantarea extensa is presented and delimited as: A. extensa, A. vinicolor, A. burle-marxii, A. turgida, A. distractila, A. lurida, A. simplicisticha, A. nigripetala, A. mucilaginosa, and A. trepida. Alcantarea trepida, known from Espírito Santo state, southeastern Brazil, is described as new, and illustrated. It is compared to A. extensa, A. simplicisticha, and A. vinicolor from which it differs by the robust, erect, compound inflorescence with more numerous flowers and by the straight and thicker rachilla. Key words: Atlantic Rainforest, endemism, inselberg, species complex, Tillandsioideae. ResumoO complexo de espécies relacionadas a Alcantarea extensa é apresentado e delimitado como: A. extensa, A. vinicolor, A. burle-marxii, A. turgida, A. distractila, A. lurida, A. simplicisticha, A. nigripetala, A. mucilaginosa e A. trepida. Alcantarea trepida, conhecida do estado do Espírito Santo, é descrita como nova e ilustrada. É comparada com A. extensa, A. simplicisticha e A. vinicolor, das quais difere pela inflorescência ereta e robusta com flores mais numerosas e pelas ráquilas retas e mais grossas. Palavras-chave: Mata Atlântica, afloramento rochoso, endemismo, complexo de espécies, Tillandsioideae.Delimitation of the Delimitation of the Delimitation of the Delimitation of the Delimitation of the Alcantarea extensa Alcantarea extensa Alcantarea extensa Alcantarea extensa Alcantarea extensa complex complex complex complex complex (Bromeliaceae) and a new species from (Bromeliaceae) and a new species from (Bromeliaceae) and a new species from (Bromeliaceae) and a new species from (Bromeliaceae) and a new species from

Floristic and ecological characterization of habitat types on an inselberg in Minas Gerais, southeastern Brazil

“…It is important to mention that a common phenomenon on inselbergs in southeastern Brazil is the widespread occurrence of species displaying a wide spectrum of morphological variation, which can cause extreme difficulties in their taxonomic treatment (Mello-Silva 2004;Versieux & Wanderley 2010). Highly variable (polymorphic) species, whose variation is partly correlated with ecology and geography, are called ochlospecies (Cronk 1998).…”

Increasing the known floristic diversity of Brazilian inselbergs: two new species of Mandevilla (Apocynaceae) from Espírito Santo

“…Major collecting efforts have been made recently, but many regions are still unexplored. Recent studies of inselbergs and forest from the area have led to the description of several narrowly endemic species (Kollmann 2008;Leme et al 2008;Leme & Kollmann 2009;Versieux & Wanderley 2010;Silva et al 2014;Goldenberg & Kollmann 2015;Meyer et al 2016;Campos-Rocha et al 2018;Meyer et al 2018;Chautems et al 2019).…”

Two new Eugenia species (Myrtaceae) from the Brazilian Atlantic forest

“…The inselbergs of southeastern Brazil have been recognized as one of the three top hotspots of the inselberg plant diversity, by their species richness and the high level of endemism (Porembski 2007). Several endemic species of other plant families have been recently described for these dry seasonal forest remnants (Versieux & Wanderley 2010;Leme et al 2010;Goldenberg et al 2012).…”