Gateble G. auteur aut IRD Munzinger Jérôme auteur aut IRD text journalArticle eng text/pdf reformatted digital access A new species, Acropogon horarius Gateble & Munzinger, sp. nov. (Malvaceae, Sterculioideae), is described from New Caledonia. It is known only from two very small subpopulations in the rainforests of the Petchecara Pass between Thio and Canala, in the southeast of Grande-Terre, New Caledonia's main island. This shrub to small tree has hastate leaves and minute sessile tubular whitish-yellowish flowers and is strikingly different from all other members of the genus. The type locality is geologically complex and located within one of only four amphibolite lenses known in New Caledonia. A line drawing and colour photos are provided for the new species, along with a preliminary risk of extinction assessment, which indicates that the species is Critically Endangered. specialized Acropogon geology Malvaceae New Caledonia new species Sterculioideae taxonomy threatened species NOUVELLE CALEDONIE 076 110 1-8 2018 1314-2011 https://www.documentation.ird.fr/hor/fdi:010074344 10.3897/phytokeys.110.27599 1314-2011 [F B010074344] https://www.documentation.ird.fr/hor/fdi:010074344 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/divers18-11/010074344.pdf IRD - Base Horizon / Pleins textes 2018-12-06 2023-07-11 fdi:010074344 fre