01968nas a2200205 4500008004100000245016400041210006900205260001200274300000900286490001100295520124400306653003201550653002701582653002601609653001401635653002101649100002301670700002101693856004801714 2020 eng d00aTowards a phylogenetic classification of the Ocotea complex (Lauraceae): an analysis with emphasis on the Old World taxa and description of the new genus Kuloa0 aTowards a phylogenetic classification of the Ocotea complex Laur c01/2020 a1-260 vboz0883 a

Ocotea is one of the largest genera in the Lauraceae (c. 400 spp.), and it has been known to be paraphyletic with respect to most other genera of the New World Lauraceae for almost 20 years. In the traditional circumscription, Ocotea contains not only Neotropical species, but also about 45 species from the African region, including Macaronesia, Madagascar, and the Comoro and Mascarene Islands. Only a few of the species have been included in previous molecular systematic analyses. Here we present a phylogenetic analysis, based on ITS and psbA-trnH sequences of 168 Lauraceae species, including 151 taxa from the Ocotea complex, among them 26 of the 45 Palaeotropical species currently placed in Ocotea. Our results show that the Old World species belong to two well-supported and morphologically distinguishable clades, one of which is placed unresolved among the Neotropical clades of the Ocotea complex, whereas the other is sister to Cinnamomum section Cinnamomum. The two clades can also be differentiated based morphologically. As a step towards a phylogenetic classification, we recognize the second group as the new genus Kuloa.

10ainternal transcribed spacer10amorphological analysis10aphylogenetic analysis10apsbA-trnH10astomatal complex1 aTrofimov, Dimitrij1 aRohwer, Jens, G. uhttps://lauraceae.myspecies.info/node/2037601637nas a2200241 4500008004100000245013800041210006900179260001200248300001000260490000800270520082900278653003001107653002101137653003201158653002401190653002601214653001401240653002201254100002301276700002701299700002101326856004801347 2019 eng d00aTowards a phylogenetic classification of the Ocotea complex (Lauraceae): classification principles and reinstatement of Mespilodaphne0 aTowards a phylogenetic classification of the Ocotea complex Laur c04/2019 a25-500 v1903 a

The large genus Ocotea (c. 400 species) has been known to be paraphyletic with respect to most other Neotropical genera of Lauraceae for almost 20 years, but a phylogenetic classification has not yet been proposed. Here we present a phylogenetic analysis, based on ITS and psbA-trnH sequences of 123 species from the Ocotea complex, focused on the Neotropical species with bisexual flowers. Our results show that several well-supported clades can be recognized morphologically. We discuss the principles of splitting monophyletic genera from large paraphyletic groups, and we reinstate the genus Mespilodaphne as a first step towards a phylogenetic classification. In addition, three species previously included in Aiouea are transferred to Damburneya.

10aclassification principles10afruit morphology10ainternal transcribed spacer10aparaphyletic groups10aphylogenetic analysis10apsbA-trnH10astamen morphology1 aTrofimov, Dimitrij1 aMoraes, Pedro, L.R. de1 aRohwer, Jens, G. uhttps://lauraceae.myspecies.info/node/20373