Taxonomy
Synonyms
Glochidion macrochorion (Baill.) Müll.Arg. • Phyllanthus macrochorion Baill.Red List Status -
Endangered (EN) , assessed in 20/08/2020
Description
Phyllanthus macrochorion is a shrub, endemic of New Caledonia and it has a scattered distribution between Téné and Poya. This species occurs in forests undergrowth restricted to ultramafic and calcareous seams between 58 and 336 m asl. The main identified threats are linked to habitat damage by bushfires. Its extent of occurrence (EOO) and area of occupancy (AOO) are respectively estimated to be of 282 km² and 28 km² while the number of locations is estimated to be 5. Using criterion B and with the estimation of a continuous decline of its habitat quality and number of mature individuals, Phyllanthus macrochorion is assessed as En Dangered (EN) B1ab(iii,v)+2ab(iii,v).
Geographical area
Phyllanthus macrochorion is endemic of New Caledonia where it has a scattered distribution between Téné and Poya.
Population
Population size is unknown.
Habitat
Phyllanthus macrochorion occurs in forests undergrowth restricted to ultramafic and calcareous seams between 58 and 336 m asl.
Threats
The main identified threats are linked to habitat damage by bushfires.
Conservation
Phyllanthus genus is protected by legislation in Province Nord. None of the subpopulations occur within a protected area. This species should be listed in the Province Sud legislation. This species would benefit from in situ and ex situ conservation actions. Plus 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.
Bibliography
Morat, P.; Jaffré, T.; Tronchet, F.; Munzinger, J.; Pillon, Y.; Veillon, J.-M. and Chalopin, M. 2012. Le référentiel taxonomique Florical et les caractéristiques de la flore vasculaire indigène de la Nouvelle-Calédonie [The taxonomic database « FLORICAL » and characteristics of the indigenous flora of New Caledonia]. Adansonia sér 3(34) , p.177-219.
McPherson, G.; Schmid, M. 1991. Flore de la Nouvelle-Calédonie et dépendances. Volume 17 : Euphorbiaceae II Phyllanthaceae.
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Experts
Assessor(s): Amice, R., Barrière, R., Butin, J., Cazé, H., Dumontet, V., Fleurot, D., Garnier, D., Gâteblé, G., Héquet, V., Laudereau, C., Vandrot, H., Veillon, J.
Reviewer(s): Lannuzel, G.
Facilitator(s): Meyer, S., Warimavute, G.