Descriptions of ten new species of Turraea L. (Meliaceae, Turraeeae) from Madagascar with notes on the species described by Buchenau

Turraea L. (Meliaceae) is the largest genus of the tribe Turraeeae (subfamily Melioideae) with c. 68 currently recognized species mostly occuring in Africa and Madagascar. Recent molecular phylogenetic studies show that the endemic Malagasy genera, Calodecaryia J.-F. Leroy and Humbertioturraea J.-F. Leroy, are better placed as synonyms within an enlarged Turraea sensu lato. Ten new species of Turraea endemic to Madagascar are described in this article, i.e. T. bardotiae Lescot & Callm., sp. nov., T. flagellata J.-F. Leroy & Lescot ex Callm. & Nusb., sp. nov., T. gracilifolia Callm. & Nusb., sp. nov., T. lescotiana Callm. & Nusb., sp. nov., T. neoleroyana Callm. & Nusb., sp. nov., T. rasolofoae Callm. & Nusb., sp. nov., T. sambavensis J.-F. Leroy & Lescot ex Callm. & Nusb., sp. nov., T. sambiranensis Callm. & Nusb., sp. nov., T. tsingycola Callm. & Nusb., sp. nov., and T. vohisandrianensis Callm. & Nusb., sp. nov. Each of the new species is provided with line drawings and a risk of extinction assessement using the IUCN Red List Criteria. We have also examined the original material of T. fockei Buchenau and T. kindtii Buchenau, the circumscription of which have been problematic. This material, now at BRNU, has enabled us to better understand these species and T. anomala (O. Hoffm.) Harms and T. malifolia Baker, are now reduced to synonymy.

Distribution map