Adansonia | |
Peltiera (Fabaceae), the coming and going of an “extinct” genus in Madagascar | |
Matt Lavin1  Peter B. Phillipson1  Mats Thulin1  | |
关键词: Fabaceae; Ormocarpopsis; Peltiera; Madagascar; endemism; phylogenetic analysis; conservation threat analysis; lectotypification; new combination; Fabaceae; Ormocarpopsis; Peltiera; Madagascar; endémisme; analyse phylogénétique; évaluation du statut de conservation; lectotypifcation; combinaison nouvelle; | |
DOI : 10.5252/a2013n1a6 | |
学科分类:植物学 | |
来源: Museum National d Histoire Naturelle | |
【 摘 要 】
PeltieraDuPuyamp;LabatisaMalagasygenusoftwodescribedspeciesthoughtprobablytobeextinctatthetimeofitspublicationin1997,whenitwasknownonlyfromatotalofthreepre-1950collections.However,recentfieldworkineast-centralMadagascarhasresultedinthediscoveryofstillextantpopulations,andthereforeitisnowpossibletoreconsiderthephylogeneticpositionandstatusofthegenusanditstwospecies.Phylogeneticanalysesbasedonmolecular(chloroplasttrnKandnuclearribosomalITSsequences)andmorphologicaldatacorroboratethecloserelationshipbetweenPeltieraandOrmocarpopsisR.Vig.,agenusofsixspecies,alsoendemictoMadagascar.PeltieradiffersfromOrmocarpopsismainlybyhavingarticulated,dehiscentfruits,andthetwogeneratogetherare,inturn,sistertothewidespreadbutmainlyAfricanOrmocarpumP.Beauv.Morphological,distributionalandhabitatdatagatheredfromthenewcollectionsshowthatonlyasinglespeciesofPeltieracanberecognized,andasthisspeciessharesimportantsynapomorphieswithallspeciesofOrmocarpopsis,itistransferredtothisgenusasO.nitida,comb.nov.AdistributionmapandphotographsofO.nitidacomb.nov.arepresented,andaconservationthreatanalysisofthespeciesisprovided.ThenameOrmocarpopsisislectotypifiedandanamendeddescriptionofthegenuswithitsnewcircumscriptionisgiven.
【 授权许可】
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