Abstract
Abstract The Flora of Espírito Santo presents three species of Helieae (Gentianaceae), circumscribed in the genera Prepusa, with two species, and Senaea with only one species. These poorly known species are described and illustrated here, and had their diagnostic characters and their similarities with other species discussed. In addition, this paper provides an emended key for species and geographic distribution maps of all species of Prepusa and Senaea from Flora of Espírito Santo, with additional comments on their conservation status.
Highlights
Parsimony analyses based on morphological data suggests that the genus Prepusa and Senaea are sister to one another, this relationship receives only a limited boot-strap support, with the monophyly of Prepusa supported by only winged calyces, and less than 50% of the synapomorphies that support them are not yet well understood (Calió et al 2008; Struwe et al 2002, 2009)
Brade (1935: 222), P. connata Gardner ex Hooker (1839: 225) and P. hookeriana Gardner ex Hooker (1841: 3909), are endemic to the state of Rio de Janeiro, occurring in the high-altitude grasslands; P. montana Martius (1827: 121), is endemic to the state of Bahia, occurs in campos rupestres and cerrados, sometimes close to river margins and swamps, in the Chapada Diamantina, while P. viridiflora Brade (1949: 18) and P. dibotrya Fraga, Fontana & Kollmann (2014: 288) are endemic to the state of Espírito Santo, restricted to the saxicolous vegetation islands on granitic and gneissic inselbergs associated with the Atlantic forest domain (Calió et al 2008; Fraga et al 2014)
The present study aims to review the taxonomy of Prepusa and Senaea, describing its morphology alongside illustrations and geographic distribution maps, supported by an emended key for all species
Summary
Parsimony analyses based on morphological data suggests that the genus Prepusa and Senaea are sister to one another, this relationship receives only a limited boot-strap support, with the monophyly of Prepusa supported by only winged calyces, and less than 50% of the synapomorphies that support them are not yet well understood (Calió et al 2008; Struwe et al 2002, 2009).The genus Prepusa contains only six species, five of them endemic to rocky outcrops in eastern Brazil and one restrict to campos rupestres (herbaceous or shrubby vegetation on sandy or stony soils) and cerrados (savannas) in the northeast of Brazil (Calió et al 2008).
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