Taxonomy
Synonyms
Acianthopsis confusa (Guillaumin) Szlach.Red List Status -
Least Concern (LC) , assessed in 11/09/2015Protected species -
in Northern Province
Acianthus confusus is an endemic geophyte orchid of New Caledonia, largely distributed on Grande Terre from Prony to Mont Kaala on ultramafic massifs. Acianthus confusus occurs in humid forest and in shrubland on ultramafic substrates at an altitudinal range 10-1200 m asl. With an extent of occurrence and area of occupancy respectively equal to 6,044 and 140 km², A. confusus qualifies as Least Concern.
Geographical area
Acianthus confusus is an endemic geophyte orchid of New Caledonia, largely distributed on Grande Terre from Prony to Mont Kaala on ultramafic massifs.
Population
Population size is not precisely known but census report of the population found dense population per station.
Habitat
Acianthus confusus occurs in humid forest and in shrubland on ultramafic substrates at an altitudinal range 10-1200 m asl.
Threats
A. confusus could be threatened by bushfire.
Conservation
A. confusus is protected by legislation in Province Nord and Province Sud and occurs in numerous protected areas : Parc des Grandes Fougères, réserve naturelle du Mont Do, réserve naturelle du massif du Kouakoué, réserve naturelle du Mont Mou, réserve naturelle de la Haute Dumbéa, réserve naturelle de la Haute Yaté, Parc provincial de la Rivière Bleue, aire de gestion durable des ressources de Netcha, réserve naturelle de la Vallée de la Thy, réserve naturelle du barrage de Yaté, réserve naturelle de la Forêt Cachée, réserve intégrale de la Montagne des Sources.
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.
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.
Experts
Assessor(s): Butin, J., Laudereau, C., Amice, R., Cazé, H., Fleurot, D., Frayssinet, I., Garnier, D., Goxe, J., Gâteblé, G., Veillon, J., Villegente, J.
Reviewer(s): Tanguy, V.
Contributor(s): Faria, E.
Facilitator(s): Chanfreau, S.