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Reduction of the Hawaiian genus Platydesma into Melicope section Pelea (Rutaceae) and notes on the monophyly of the section.


ABSTRACT: Platydesma, an endemic genus to the Hawaiian Islands containing four species, has long been considered of obscure origin. Recent molecular phylogenetic studies have unequivocally placed Platydesma within the widespread genus Melicope as sister to the rest of the Hawaiian species of Melicope. This makes submerging Platydesma into Melicope necessary. We make the necessary new combinations: Melicope cornuta (Hillebr.) Appelhans, K.R. Wood & W.L. Wagner, M. cornuta var. decurrens (B.C.Stone) Appelhans, K.R. Wood & W.L. Wagner, M. remyi (Sherff) Appelhans, K.R. Wood & W.L. Wagner, and M. rostrata (Hillebr.) Appelhans, K.R. Wood & W.L. Wagner. An additional species that has been recognized within Platydesma should now be recognized under its original name M. spathulata A. Gray. All Hawaiian species belong to Melicope section Pelea. Our molecular phylogenetic studies also showed that in addition to merging Platydesma into section Pelea, five species described from New Caledonia need to be excluded from the section in order to achieve monophyly of section Pelea.

SUBMITTER: Appelhans MS 

PROVIDER: S-EPMC5784234 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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Reduction of the Hawaiian genus <i>Platydesma</i> into Melicope section Pelea (Rutaceae) and notes on the monophyly of the section.

Appelhans Marc S MS   Wood Kenneth R KR   Wagner Warren L WL  

PhytoKeys 20171219 91


<i>Platydesma</i>, an endemic genus to the Hawaiian Islands containing four species, has long been considered of obscure origin. Recent molecular phylogenetic studies have unequivocally placed <i>Platydesma</i> within the widespread genus <i>Melicope</i> as sister to the rest of the Hawaiian species of <i>Melicope</i>. This makes submerging <i>Platydesma</i> into <i>Melicope</i> necessary. We make the necessary new combinations: <i>Melicope cornuta</i> (Hillebr.) Appelhans, K.R. Wood & W.L. Wagn  ...[more]

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