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1 December 2011 Réhabilitation d'Oxera pancheri Dubard (Lamiaceae), espèce menacée de la Nouvelle-Calédonie
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Abstract

Rehabilitation of Oxera pancheri Dubard (Lamiaceae), a threatened species from New Caledonia.

Oxera pancheri Dubard, a name placed in synonymy under Oxera sulfurea Dubard in the revision of the genus in 1999 and 2004, is rehabilitated. Newly collected specimens, especially the first material ever with fruits, supports the recognition of this species, first described in 1906. Morphologically, O. pancheri differs from O. sulfurea by its racemiform inflorescences, its stamens and style slightly exserted and its velutinous fruits. Oxera pancheri seems morphologically closer (based on inflorescence type, shape and characteristics of the mericarps, juvenile foliage) to O. microcalyx Guillaumin than to O. sulfurea. Oxera pancheri is endemic to the southern part of New Caledonia's main island “Grande-Terre”, growing on ultramafic substrates. The limited geographic distribution of this species and the threats to its remaining populations lead us to assign a provisional conservation status of Endangered using the IUCN Red List criteria.

© Publications Scientifiques du Muséum national d'Histoire naturelle, Paris.
Gildas Gâteblé and Jérôme Munzinger "Réhabilitation d'Oxera pancheri Dubard (Lamiaceae), espèce menacée de la Nouvelle-Calédonie," Adansonia 34(2), 377-388, (1 December 2011). https://doi.org/10.5252/a2012n2a11
Received: 11 August 2011; Accepted: 1 April 2012; Published: 1 December 2011
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