Taxonomie
Synonymes
Cannaeorchis fractiflexum M.A.Clements & D.L.JonesStatut liste rouge -
Préoccupation mineure (LC) , évaluée le 26/10/2015Espèce protégée -
en Province Nord
Description
Habitat
Forêts denses humides (F)
Particularité
Basionyme : Dendrobium fractiflexum
Dendrobium fractiflexum is an endemic orchid of New Caledonia, mostly distributed in the extreme south of Grande Terre with Monéo as the northern boundary. D. fractiflexum occurs mostly in lowland humid forest on ultramafic substrate. Despite mining activities being a threat, D. fractiflexum remains a common species in the south of Grande Terre. With an area of occupancy and an extent of occurrence equal to 348 and 4,870 km², D. fractiflexum qualifies as Least Concern.
Aire géographique
D. fractiflexum is an endemic orchid of New Caledonia, mostly distributed in the extreme south of Grande Terre with Monéo as the northern boundary.
Population
D. fractiflexum is a common species of fumid forest from southern part of Grande Terre. It is most of time abundant on stations.
Habitat
D. fractiflexum occurs mostly in lowland humid forest on ultramafic substrate.
Menaces
D. fractiflexum is threatened by nickel mining, namely mining project conducted by Vale, Montagnat and SLN companies.
Conservation
D. fractiflexum is protected in Province Nord and Province Sud and occurs in numerous protected areas : réserve naturelle du massif du Kouakoué, réserve naturelle du pic du grand Kaori, réserve naturelle du Pic du Pin, réserve intégrale de la Montagne des Sources, réserve naturelle du barrage de Yaté, réserve naturelle de la Haute Yaté, Parc Provincial de la Rivière Bleue, réserve naturelle de la Forêt Cachée, réserve naturelle du Mont Do, réserve naturelle de la Forêt Nord. In 2014, D. fractiflexum was the object of a transplantation operation conducted by Vale : 116 mature individuals have been transplanted in Wadjana after one year acclimatization in nursery.
Bibliographie
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Hallé N.; Aubréville A.; Leroy J. F.; 1977. Flore de la Nouvelle-Calédonie et dépendances. Volume 8: Orchidaceae.
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.
Experts
Assessor(s): Butin, J., Laudereau, C., Amice, R., Fleurot, D., Frayssinet, I., Garnier, D., Letocart, D., Letocart, I.
Reviewer(s): Tanguy, V.
Contributor(s): Faria, E.
Facilitator(s): Chanfreau, S.