Dijoux Laury auteur aut IRD Verbruggen H. auteur aut IRD Mattio L. auteur aut IRD Duong Nathalie auteur aut IRD Payri Claude auteur aut IRD text journalArticle eng text/pdf born digital access Halimeda is a genus of calcified and segmented green macroalgae in the order Bryopsidales. In New Caledonia, the genus is abundant and represents an important part of the reef flora. Previous studies recorded 19 species that were identified using morphological criteria. The aim of this work was to reassess the diversity of the genus in New Caledonia using morpho-anatomical examinations and molecular analyses of the plastid tufA and rbcL genes. Our results suggest the occurrence of 22 species. Three of these are reported for the first time from New Caledonia: Halimeda kanaloana, H. xishaensis, and an entity resembling H. stuposa. DNA analyses revealed that the species H. fragilis exhibits cryptic or pseudocryptic diversity in New Caledonia. We also show less conclusive evidence for cryptic species within H. taenicola specialized biodiversity coral reefs Halimeda New Caledonia rbcL taxonomic revision tufA NOUVELLE CALEDONIE 034 48 6 1465-1481 2012 0022-3646 https://www.documentation.ird.fr/hor/fdi:010058237 10.1111/jpy.12002 0022-3646 [F B010058237] https://www.documentation.ird.fr/hor/fdi:010058237 https://www.documentation.ird.fr/intranet/publi/2013/01/010058237.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2013-02-06 2017-08-23 fdi:010058237 fre