Taxonomie
Dendrobium verruciferum
Synonymes
Cannaeorchis verrucifera M.A.Clements & D.L.JonesStatut liste rouge -
Préoccupation mineure (LC) , évaluée le 26/10/2015Espèce protégée -
en Province Nord
Description
Habitat
Bord de mer, maquis (LM)
Dendrobium verruciferum is an endemic orchid of New Caledonia mostly distributed in the Grand Sud, but also found in Poum area and beween Bogota and Poro on the east coast. D. verruciferum occurs in damaged shrubland and sometimes in humid forest but always on ultramafic substrate. Despite the threat of nickel mining, D. verruciferum remains abundant. With an area of occupancy and an extent of occurrence equal to 268 and 6,673 km², D. verruciferum qualifies as Least Concern.
Aire géographique
D. verruciferum is an endemic orchid of New Caledonia mostly distributed in the Grand Sud, but also found in Poum area and beween Bogota and Poro.
Population
Total population size is unknown but field observations report a disseminated population by station.
Habitat
D. verruciferum occurs in damaged shrubland and sometimes in humid forest but always on ultramafic substrate.
Menaces
Bushfire does not appear to be a major threat to D. verruciferum as it is growing up among the rocks ("chrome de fer"). However, nickel mining in Goro and on the east coast is clearly a threat to D. verruciferum.
Conservation
D. verruciferum is protected by legislation in Province Nord and Province Sud. This species is found in numerous protected areas : Parc Provincial de la Rivière Bleue, réserve naturelle du barrage de Yaté, réserve naturelle du Pic du Pin, réserve intégrale de la Montagne des Sources, réserve naturelle des Chutes de la Madeleine, réserve naturelle de la Haute Yaté, réserve naturelle du Cap N’Dua, réserve naturelle du barrage de Yaté, réserve naturelle de la Forêt Cachée. In 2014, D. verruciferum was the object of a transplantation operation conducted by Vale : 224 mature individuals have been transplanted in Wadjana after 1 year acclimatization in nursery.
Bibliographie
Hallé N.; Aubréville A.; Leroy J. F.; 1977. Flore de la Nouvelle-Calédonie et dépendances. Volume 8: Orchidaceae.
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. 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.