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Diversification of the orchid genus Tridactyle: Origin of endemism on the oceanic islands of São Tomé & Príncipe in the Gulf of Guinea

Oceanic islands have played an important role in our understanding of the diversification of organisms, and phylogenetic estimates have been used in this context to investigate the origin of island diversity and its relationship to the continent. Using a typical orchid genus rich in island endemics and with widespread continental relatives, we aim to compare alternative hypotheses of diversification with a focus on island endemism.