A New Species of Maytenus (Celastraceae) with Fleshy Fruits from Eastern Brazil, with Notes on the Delimitation of Maytenus

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dc.contributor.authorGroppo, Milton
dc.contributor.authorSimmons, Mark P.
dc.contributor.authorCappa, Jennifer J.
dc.contributor.authorBiral, Leonardo [UNESP]
dc.contributor.authorLombardi, Julio A. [UNESP]
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionColorado State Univ
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-12-03T13:11:02Z
dc.date.available2014-12-03T13:11:02Z
dc.date.issued2014-04-01
dc.description.abstractA new species of Celastraceae, Maytenus megalocarpa, is described and illustrated. The species is known from only a small number of collections from eastern Brazil, in the Atlantic Rainforest of Bahia and Minas Gerais states. It is considered endangered given the rapid deforestation of this biome. The species is readily distinguished from its congeners by its large, tardily dehiscent fruit that does not open by reflexed valves and by the seeds enveloped by thick arils. Given its remarkable fruits and the consequent initial doubt about the generic position of the new species in Celastraceae, a phylogenetic analysis using molecular data from plastid and nuclear rDNA gene regions, together with morphological characters, was performed. The new species was consistently resolved as nested within Maytenus, which itself is paraphyletic. Incongruence between the nuclear and plastid gene regions was identified for Fraunhofera, Maytenus texana, and Plencicia. Future taxonomic changes are necessary to rigorously delimit Maytenus as a natural genus. Additional comments on geographical distribution, phenology and conservation status of the new species are also provided, as well as a key to the species of Neotropical Mayternis with spinose leaves.en
dc.description.affiliationUniv Sao Paulo, Fac Filosofia Ciencias & Letras Ribeirao Preto, Dept Biol, BR-14051901 Ribeirao Preto, SP, Brazil
dc.description.affiliationColorado State Univ, Dept Biol, Ft Collins, CO 80523 USA
dc.description.affiliationUniv Estadual Paulista, Inst Biociencias Rio Claro, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Inst Biociencias Rio Claro, Dept Bot, BR-13506900 Rio Claro, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipPro-IF USP Program
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 06/03170-0
dc.description.sponsorshipIdFAPESP: 10/10284-4
dc.description.sponsorshipIdFAPESP: 11/10446-0
dc.description.sponsorshipIdFAPESP: 10/17400-3
dc.description.sponsorshipIdFAPESP: 11/21879-5
dc.description.sponsorshipIdCNPq: 307627/2009-8
dc.description.sponsorshipIdCNPq: 300240/2009-0
dc.description.sponsorshipIdCNPq: 562240/2010-1
dc.format.extent478-484
dc.identifierhttp://dx.doi.org/10.1600/036364414X680726
dc.identifier.citationSystematic Botany. Laramie: Amer Soc Plant Taxonomists, v. 39, n. 2, p. 478-484, 2014.
dc.identifier.doi10.1600/036364414X680726
dc.identifier.issn0363-6445
dc.identifier.urihttp://hdl.handle.net/11449/112764
dc.identifier.wosWOS:000336463000012
dc.language.isoeng
dc.publisherAmer Soc Plant Taxonomists
dc.relation.ispartofSystematic Botany
dc.relation.ispartofjcr1.515
dc.relation.ispartofsjr0,862
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAtlantic Rainforesten
dc.subjectCelastralesen
dc.subjectphylogenyen
dc.subjecttaxonomyen
dc.titleA New Species of Maytenus (Celastraceae) with Fleshy Fruits from Eastern Brazil, with Notes on the Delimitation of Maytenusen
dc.typeArtigo
dcterms.rightsHolderAmer Soc Plant Taxonomists
unesp.author.orcid0000-0003-3896-4633[2]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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