2016
DOI: 10.1007/s00606-016-1320-8
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Independent evolution of pouched flowers in the Amazon is supported by the discovery of a new species of Lesia (Gesneriaceae) from Serra do Aracá tepui in Brazil

Abstract: We describe and illustrate Lesia tepuiensis, a new species of subshrub from rock outcrops of the Serra do Aracá tepui in Amazonas, Brazil. Phylogenetic analyses based on 7219-aligned base pairs of the plastid and nuclear DNA sequences recovered the new species as sister to Lesia savannarum, the type species of Lesia, a genus recently described as monotypic. The new species is readily distinguished from L. savannarum by having a red, pouched corolla tube, lanceolate calyx lobes, a hirsute to tomentose leaf indu… Show more

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Cited by 8 publications
(8 citation statements)
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References 32 publications
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“…Five highly supported clades were resolved in the Gesnerieae, corresponding to the subtribes Gesneriinae, Gloxiniinae, Columneinae, Sphaerorrhizinae and Ligeriinae. Generic and infrageneric relationships largely agree with previous phylogenetic results obtained for these lineages [37,[50][51][52][53]. Out of 74 genera of Gesnerioideae, eight appeared non-monophyletic and are still in need of further taxonomical revision (Achimenes, Diastema, Gesneria, Mandirola, Paliavana, Phinaea, Sinningia and Vanhouttea).…”
Section: Results (A) Phylogenetic Reconstructionsupporting
confidence: 87%
“…Five highly supported clades were resolved in the Gesnerieae, corresponding to the subtribes Gesneriinae, Gloxiniinae, Columneinae, Sphaerorrhizinae and Ligeriinae. Generic and infrageneric relationships largely agree with previous phylogenetic results obtained for these lineages [37,[50][51][52][53]. Out of 74 genera of Gesnerioideae, eight appeared non-monophyletic and are still in need of further taxonomical revision (Achimenes, Diastema, Gesneria, Mandirola, Paliavana, Phinaea, Sinningia and Vanhouttea).…”
Section: Results (A) Phylogenetic Reconstructionsupporting
confidence: 87%
“…Phylogenetic relationsips among these taxa were reconstructed using seven plastid DNA regions (atpB-rbcL, matK, rps16, rpl16, trnT-trnL, trnL-trnF and trns-trnG) and two nuclear regions, the ribosomal internal transcribed spacer (iTs) and a portion of the plastid-expressed glutamine synthetase gene (ncpGs). New DNA sequences were generated for trnT-trnL, trns-trnG and for the new species, N. exsertus, following the procedure described in Perret et al (2003) and Ferreira et al (2016). All other sequences were obtained from previous works by Serrano-Serrano et al 2015and Ferreira et al (2016).…”
Section: Methodsmentioning
confidence: 99%
“…The genus Nematanthus Schrader includes 31 species, all endemic to the Brazilian Atlantic Forest (Chautems et al, 2005 ;Ferreira et al, 2016). Nematanthus species are epiphytic perennial herbs or subshrubs, less frequently growing on rocky substrates in humus pockets.…”
Section: Introductionmentioning
confidence: 99%
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“…O gênero tem distribuição neotropical, e seus representantes podem ser ervas perenes, arbustos ou arvoretas formando populações com poucos indivíduos localizados apenas no interior da floresta úmida, geralmente ocupando áreas próximas a córregos, riachos e cachoeiras em variadas altitudes. O centro de diversidade do gênero é nos Andes Tropical (mais de 100 espécies) e na América Central (20 espécies), entretanto tem distribuição disjunta nos Andes e floresta Amazônia da Bolívia até a Colômbia, nas ilhas do Caribe e na Mata Atlântica brasileira (11 espécies), locais que são importantes redutos de riqueza e endemismo dessas espécies, abrigando vários táxons endêmicos (SKOG;BOGGAN, 2007;CHAUTEMS, 2007;FERREIRA et al 2016a) Ferreira (2018) analisando morfologia e biologia molecular de Beslerieae, exclui a relação Beslerieae-Napeantheae e confirma Titanotrichum Solereder como grupo irmão de Beslerieae.…”
Section: Tribos Beslerieae E Napeantheaeunclassified