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Paul masson upper volta5/28/2023 Incomplete lineage sorting and reticulation are, for instance, commonly observed in low-rank phylogenies. Full species lists are given for the reinstated genera treated here except for Breynia, Synostemon and Glochidion.Īn increasing number of studies using genetic data at the generic and species levels reveal complex patterns of relationships among populations and species. Several keys are provided to distinguish the reinstated genera. As a result of the reinstated genera, five new names for illegitimate combinations or previous overlooked nomenclatural anomalies and 645 new combinations are proposed. With this new division of the genus Phyllanthus, tribe Phyllantheae will consist of the following 18 genera: Breynia, Cathetus, Cicca, Dendrophyllanthus, Emblica, Flueggea, Glochidion, Heterosavia, Kirganelia, Lingelsheimia, Lysiandra, Margaritaria, Moeroris, Nellica, Nymphanthus, Phyllanthus, Plagiocladus and Synostemon. The new classification is based on a phylogenetic framework combined with differences in habit, branching type, floral, fruit and pollen morphology. Instead of combining all these genera, we here implement the solution of splitting Phyllanthus into strictly monophyletic genera to ensure that the classification is consistent with the latest phylogenetic results. The genera Breynia, Glochidion and Synostemon were recently found to be nested within Phyllanthus and discussions ensued whether or not to subsume everything into Phyllanthus s.l. Here, we split Phyllanthus into ten monophyletic genera, which are all reinstatements of former genera, but with changes made to the circumscription and constituent species of each group. The majority of tribe Phyllantheae (Phyllanthaceae) is currently placed in the paraphyletic genus Phyllanthus and discussions have persisted on how to resolve this issue. pedicellatus, species with dracenoid habit and exclusive to the humid dense forests along Atlantic Forest domain, for which we describe a new section. Claussenianii ), but no macromorphological feature could be traced for the clades we recovered. Choretropsis are recovered among representatives of other groups (sects. Thus, phylloclades arose in Phyllanthus at least in five distinct clades. Choretropsis, as it currently stands, does not form a monophyletic group. Our analysis demonstrated that these two sections are clearly distinct, but sect. Choretropsis and Xylophylla from eastern Brazil and Caribbean, respectively. In this work, we inferred a phylogeny for the phyllocladiferous species of Phyllanthus, traditionally included within Phyllanthus sects. The latest phylogenetic and taxonomic studies emphasizing Phyllanthus (Phyllanthaceae) have significantly altered the relationships between its taxa.
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