A Revision of the <i>Solanum asterophorum</i> Species Group (subg. <i>Leptostemonum</i>)

Gouvêa, Yuri Fernandes; Stehmann, João Renato

doi:10.1600/036364419x698047

Cited by 8 publications

(12 citation statements)

References 25 publications

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“…Young stem color ranges from completely green or partly to completely deep purple (Fig. 2D, E, 3A–C), as has been found in other Solanum species (e.g., S.asterophorum Mart., Gouvêa and Stehmann in press.). This distinct coloration can be confined to juvenile plants (as in S.asterophorum ) or continue to be present on growing stems of reproductive individuals (as is observed in S.medusae and S.kollastrum Gouvêa & Giacomin, Gouvêa et al 2018).…”

Section: Taxonomic Treatmentmentioning

confidence: 98%

Solanum medusae (Solanaceae), a new wolf-fruit from Brazil, and a key to the extra-Amazonian Brazilian Androceras/Crinitum Clade species

Gouvêa¹,

Tehmann²,

Knapp³

2019

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Solanummedusaesp. nov. is described from the Cerrado biome in the Serra da Canastra region, southwestern Minas Gerais State, Brazil. The new species is morphologically similar to the common S.lycocarpum A.St.-Hil. (known as lobeira or wolf-fruit), but differs from it in habit and pubescence characters. We here describe this new taxon and discuss its morphology, some aspects of its ecology, affinities and distribution. Full specimen citations are provided, as well as illustrations, distribution map and a preliminary conservation assessment of the species. A key to all of the known extra-Amazonian Brazilian species of the Androceras/Crinitum clade is also provided to aid in their identification.

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Section: Taxonomic Treatmentmentioning

confidence: 98%

Solanum medusae (Solanaceae), a new wolf-fruit from Brazil, and a key to the extra-Amazonian Brazilian Androceras/Crinitum Clade species

Gouvêa¹,

Tehmann²,

Knapp³

2019

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“…anomalostemon S.Knapp & M.Nee; Knapp & Nee, 2009), tuber-bearing shrubs (Asterophorum clade; Gouvêa & Stehmann, 2019), species with leaky dioecy and fluid sex expression (Martine & al., 2009; and with resin-glands (Silva Sampaio & al., 2021).…”

Section: Introductionmentioning

confidence: 99%

“…1A-F). New and unexpected morphological diversity continues to be discovered as baseline taxonomic work advances in Solanum , with some of recent discoveries including a species with heart-shaped anthers ( S. anomalostemon S.Knapp & M.Nee; Knapp & Nee, 2009), tuber-bearing shrubs (Asterophorum clade; Gouvêa & Stehmann, 2019), species with leaky dioecy and fluid sex expression (Martine & al., 2009; McDonnell & al., 2019) and with resin-glands (Silva Sampaio & al., 2021).…”

Section: Introductionmentioning

confidence: 99%

Morphological trait evolution inSolanum(Solanaceae): evolutionary lability of key taxonomic characters

Hilgenhof

Gagnon

Knapp

et al. 2023

Preprint

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Solanum L. is one of the worlds largest and economically most important plant genera, including 1,245 currently accepted species and several major and minor crops (e.g., tomato, potato, brinjal eggplant, scarlet eggplant, Gboma eggplant, lulo, and pepino). Here we provide an overview of the evolution of 25 key morphological traits for the major and minor clades of this giant genus based on stochastic mapping using a well-sampled recently published phylogeny of Solanum. The most evolutionarily labile traits (showing >150 transitions across the genus) relate to plant structure (growth form and sympodial unit structure), herbivore defence (glandular trichomes), pollination (corolla shape and colour), and dispersal (fruit colour). Ten further traits show evolutionary lability with 50-100 transitions across the genus (e.g., specialised underground organs, trichome structure, leaf type, inflorescence position and branching, stamen heteromorphism). Our results reveal a number of highly convergent traits in Solanum, including tubers, rhizomes, simple leaves, yellow corollas, heteromorphic anthers, dioecy, and dry fruits, and some unexpected pathways of trait evolution that could be explored in future studies. We show that informally named clades of Solanum can be morphologically defined by trait combinations providing a tool for identification and enabling predictive phylogenetic placement of unsampled species.

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“…In Brazil, the Atlantic Forest stands out as a centre of diversity for the genus, with 184 species recorded thus far, of which 98 are endemic (Stehmann et al 2009; Flora do Brasil 2020 under construction 2019). In addition to species level endemism, the Atlantic Forest domain harbours several endemic lineages within Solanum, such as the Asterophorum and Inornatum species groups (Giacomin and Stehmann 2014;Gouvêa and Stehmann 2019). In fact, the domain shows an ascending curve of newly described taxa in the last years, demonstrating the insufficiency of taxonomic knowledge (Linnaean shortfall) (Sobral and Stehmann 2009).…”

Section: Introductionmentioning

confidence: 99%

Solanum hydroides (Solanaceae): a prickly novelty from the land of the sugar loaves, central Brazilian Atlantic Forest

Gouvêa¹,

Paula²,

Stehmann³

et al. 2020

1,056

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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.

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A Revision of the Solanum asterophorum Species Group (subg. Leptostemonum)

Cited by 8 publications

References 25 publications

Solanum medusae (Solanaceae), a new wolf-fruit from Brazil, and a key to the extra-Amazonian Brazilian Androceras/Crinitum Clade species

Solanum medusae (Solanaceae), a new wolf-fruit from Brazil, and a key to the extra-Amazonian Brazilian Androceras/Crinitum Clade species

Morphological trait evolution inSolanum(Solanaceae): evolutionary lability of key taxonomic characters

Solanum hydroides (Solanaceae): a prickly novelty from the land of the sugar loaves, central Brazilian Atlantic Forest

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