Pycnandra carinocostata is endemic shrub or small tree of Grande Terre in New Caledonia, confined to areas with ultramafic soil from Yaté in the south to the Tchingou massif in the north. It occurs primarily in humid forest on ultramafic substrate at high altitudes, from 900m and upwards, and it has occasionally been collected on lower mountains. The only main impact identified comes from ongoing mining activities at Kopéto. Therefore, this species does not seem globally threatened. Its area of occupancy (AOO) and extent of occurrence (EOO) being respectively estimated to 48 and 6,481km², Pycnandra carinocostata is considered Near Threatened (NT) B1b(iii)+2b(iii) with a decline of habitat quality.

Geographical area

Pycnandra carinocostata is confined to areas with ultramafic soil from Yaté in the south to the Tchingou massif in the north.

Population

It is known from ten subpopulations: Tonine, Tchingou, Kopeto, Paeoua, Mont Mou, Baraoua, Kouakoue, haute Pourina, Montagne des Sources and Gouemba (Haute Yaté).

Habitat

This species occurs primarily in humid forest on ultramafic substrate at high altitudes, from 900m and upwards, and it has occasionally been collected on lower mountains.

Threats

This species does not seem globally threatened. Some subpopulations may be threatened by mining activities: Kopeto (SLN).

Conservation

Unprotected by legislation, this species is found in three protected areas : Montagne des sources, Mont Mou, Massif du Kouakoué.

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.

Swenson U. and Muzinger J. 2010. Taxonomic revision of Pycnandra subgenus Trouettia (Sapotaceae), with six new species from New Caledonia. Australian Systematic Botany(23) , p.333-370.

Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.

Swenson U. and Muzinger J. 2016. Five new species and a systematic synopsis of Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia. Australian Systematic Botany(29) , p.1-40.

Experts

Assessor(s): Cazé, H., Garnier, D., Goxe, J., Héquet, V., McCoy, S.

Reviewer(s): Gâteblé, G.

Contributor(s): Munzinger, J., Swenson, U.

Facilitator(s): Bernard-Musmann, M., Maura, J.