SynonymsHomalium intermedium sensu Guillaumin
Red List Status -Endangered (EN) , assessed in 20/11/2020
Protected species -in Southern Province , in Northern Province
Homalium juxtapositum is a narrow endemic shrub restricted to the north west of Grande Terre in New Caledonia. This species is found in shrubland on an ultramafic substrate at an altitude range between 10 and 100 m asl. The main threats identified are uncontrolled bushfires and mining activities. Its extent of occurrence (EOO) and area of occupancy (AOO) are estimated to 59 and 16 km², respectively, while its number of locations is equal to three. Homalium juxtapositum is therefore considered as Endangered (EN) B1ab(ii,iii,v)+2ab(ii,iii,v) with an estimated decline of AOO, the habitat quality and the number of mature individuals.
Homalium juxtapositum is endemic to New Caledonia where it is restricted to the north west of Grande Terre in New Caledonia.
Population size is unknown.
Homalium juxtapositum is found in shrubland on an ultramafic substrate at an altitude range between 10 and 100 m asl.
The main threats identified are uncontrolled bushfires and mining activities.
Homalium juxtapositum is protected by legislation in New Caledonia and it does not occur in any protected area. It is recommended to inform the DSCGR (emergency services), responsible for the coordination of the firefighting effort, on the presence of the species in the concerned areas. And finally this species would benefit from ex situ and in situ emergency conservation actions.
Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Rouhan G., Bruy, D., Veillon J.-M., & M. Chalopin 2020. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia [continuously updated].
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Assessor(s): Bruy, D., Butin, J., Dumontet, V., Fleurot, D., Héquet, V., Laudereau, C., Mandaoué, L., Vandrot, H.
Reviewer(s): Cazé, H.
Facilitator(s): Warimavute, G., Meyer, S.