Abstract
Solanum hydroides Gouvêa & Giacomin, sp. nov., is described from central Brazilian Atlantic Forest. It is known from only three localities in Espírito Santo and Minas Gerais states, where granitic/gneissic outcrops (inselbergs or sugar loaves) are ubiquitous. The new species, here described, belongs to Solanum subgenus Leptostemonum (or the Leptostemonum clade; i.e. the spiny solanums) and is morphologically related to S. hexandrum Vell. and S. sublentum Hiern, with which it shares the shrubby habit, decurrent leaf bases and well-developed calyces that become accrescent, covering glabrous fruits. Solanum hydroides is unique in its combination of comparatively more delicate habit, indumentum of exclusively stellate eglandular trichomes, accrescent but never inflated fruiting calyces that only partially cover the fruits and comparatively shortly lobed and strictly white corollas. The species is threatened with extinction and assessed as Vulnerable (VU), based on the IUCN criteria.
Highlights
Solanum L. (Solanaceae) is one of the largest genera of flowering plants with about 1,400 species, mostly distributed in the Neotropics (Nee 1999; Frodin 2004; Weese and Bohs 2007)
The distribution of the most morphologically similar species were mapped together with the known records of S. hydroides and the full dataset used for these species is given as supplementary material (Suppl. material 2), which was downloaded from the speciesLink platform and properly cleaned prior to mapping
All other specimens were found in vegetation remnants associated with two inselbergs, located in the municipality of Nova Venécia, Espírito Santo state and in Minas Gerais State’s municipality of Teófilo Otoni
Summary
Solanum L. (Solanaceae) is one of the largest genera of flowering plants with about 1,400 species, mostly distributed in the Neotropics (Nee 1999; Frodin 2004; Weese and Bohs 2007). S. sublentum Hiern.) were mapped together with the known records of S. hydroides and the full dataset used for these species is given as supplementary material
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