Towards a phylogenetic classification of the Ocotea complex (Lauraceae): classification principles and reinstatement of Mespilodaphne

Publication Type:Journal Article
Year of Publication:2019
Authors:D. Trofimov, Moraes, P. L. R. de, Rohwer, J. G.
Journal:Botanical Journal of the Linnean Society
Start Page:25
Date Published:04/2019
Keywords:classification principles, fruit morphology, internal transcribed spacer, paraphyletic groups, phylogenetic analysis, psbA-trnH, stamen morphology

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.

Alternate Journal:Bot. J. Linn. Soc.
Refereed Designation:Refereed
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith