Taxonomy

Pycnandra heteromera (Vink) Swenson & Munzinger
endemique
UICN

Synonyms

Chrysophyllum heteromerum VinkNiemeyera heteromera (Vink) comb. ined.

Red List Status -

Vulnerable (VU) , assessed in 10/05/2016

Pycnandra heteromera is an endemic shrub or tree of Grande-Terre in New Caledonia, from Ouenghi in the North to Fausse Yaté in the South. It is found in shrubland on ultramafic substrate at an altitudinal range 300-1,000 m asl. The main impact identified comes from bushfires. The subpopulation in Mount Dore is suspected of having been destroyed by fire. Therefore, this species does not seem globally threatened. Its area of occupancy (AOO) and extent of occurrence (EOO) being respectively estimated to 36 and 1,076 km², Pycnandra heteromera is therefore considered Vulnerable (VU) according to criteria B1ab(iii)+2ab(iii) with a decline of habitat quality and a number of locations equal to 9.

Geographical area


Pycnandra heteromera is an endemic shrub or tree of Grande-Terre in New Caledonia, from Ouenghi in the North to Fausse Yaté in the South.

Population


It is known from 9 subpopulations.The known subpopulations have each only few individuals and the species appears to be naturally uncommon

Habitat


Pycnandra heteromera is found in shrubland on ultramafic substrate at an altitudinal range 300-1,000 m asl.

Threats


This species does not seem globally threatened. Some of the lowest subpopulations may be threatened by bushfires. Subpopulation in Mount Dore is suspected of having been destroyed by fire.

Conservation


Unprotected by legislation, this species is found in seven protected areas : Haute Dumbéa, la Dumbéa, Barrage de Yaté, Rivière bleue, Pic du Pin, Haute Yaté.

Bibliography


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.

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.

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

Morat, P.; Jaffré, T.; Tronchet, F.; Munzinger, J.; Pillon, Y.; Veillon, J.-M. and Chalopin, M. 2012. The taxonomic database « FLORICAL » and characteristics of the indigenous flora of New Caledonia. Adansonia(334(2)) , p.177-219.

Experts


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

Reviewer(s): Gâteblé, G.

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

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


Geographical distribution