Revision of Ixora (Rubiaceae) in the Marquesas Islands (French Polynesia)

Authors: LORENCE, DAVID H.¹; WAGNER, WARREN L.²; MOULY, ARNAUD; FLORENCE, JACQUES³

Source: Botanical Journal of the Linnean Society, Volume 155, Number 4, December 2007 , pp. 581-597(17)

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Abstract:

During the preparation of the Vascular Flora of the Marquesas Islands and Flore de la Polynésie française, four new species of Ixora L. (Rubiaceae) have come to light and are described and illustrated herein: Ixora jourdanii Mouly & J.Florence, Ixora tahuataensis Mouly & J.Florence, Ixora uahukaensis Lorence & W.L.Wagner, and Ixora uapouensis Lorence & W.L.Wagner. In addition to these new taxa, the following three species of Ixora previously described from the Marquesas are recognized: Ixora marquesensis F.Br., Ixora ooumuensis J.Florence, and Ixora spathoidea F.Br. As the Marquesan environment is under serious threat from human impact, feral animals and weeds, the conservation status was estimated for each Ixora species. It is concluded that all Marquesan taxa are in need of inclusion in the IUCN Red List, their status ranging from endangered to critically endangered. © 2007 The Linnean Society of London, Botanical Journal of the Linnean Society, 2007, 155, 581-597.

Keywords: conservation; endemism; Ixoreae; myrmecophily

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1095-8339.2007.00732.x

Affiliations: 1: National Tropical Botanical Garden, 3530 Papalina Road, Kalaheo, HI 96741-9599, USA 2: Department of Botany, MRC-166, National Museum of Natural History, Smithsonian Institution, PO Box 37012, Washington, DC 20013-7012, USA 3: US 084 BIODIVAL, Institut de Recherche pour le Développement, Muséum national d'Histoire naturelle - Phanérogamie CP39, 16 rue Buffon, 75231 Paris 05, France

Publication date: 2007-12-01