Taxonomy

Sphaeropteris intermedia (Mett.) R.M.Tryon
endemique
protegee
UICN

Common name :

Groubaï (drubéa)

Synonyms

Cyathea intermedia (Mett.) Copel.Alsophila intermedia Mett.

Red List Status -

Least Concern (LC) , assessed in 10/06/2017

Protected species -

in Northern Province

Sphaeropteris intermedia is an endemic tree fern of New Caledonia, which can grow above 20 meters, widespread across Grande Terre from Mandjélia in the north to Forêt Nord in the south. It occurs in dense humid forest on volcano-sedimentary and ultramafic substrate, at an altitudinal range of 40-600 m asl. This species does not seem globally threatened. With an extent of occurrence (EOO) and area of occupancy (AOO) respectively equal to 11,288 and 128 km², Sphaeropteris intermedia is considered Least Concern (LC).

Geographical area


Sphaeropteris intermedia is an endemic tree fern of New Caledonia, which can grow above 20 meters, widespread across Grande Terre from Mandjélia in the north to Forêt Nord in the south.

Population


Common species with a slow growth rate. Population size is unknown.

Habitat


Sphaeropteris intermedia occurs in dense humid forest on volcano-sedimentary and ultramafic substrate, at an altitudinal range of 40-600 m asl.

Threats


There is no major threat identified.

Conservation


Sphaeropteris intermedia is protected by legislation in Province Sud and occurs in eight protected areas: Vallée de la Thy, Foret Nord, Mont Panié, Parc des Grandes Fougères, Aoupinié, Mont Mou, Haute Yaté, Rivière Bleue.

Bibliography


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.

Brownlie G. 1969. Flore de la Nouvelle-Calédonie et Dépendances, Volume 03 : Pteridophytae.

Experts


Assessor(s): Amice, R., Barrabé, L., Cazé, H., Chambrey, C., Garnier, D., Héquet, V., Letocart, D., Letocart, I.

Reviewer(s): Tanguy, V., Perrie, L.

Facilitator(s): Warimavute, G., Tanguy, V., Maura, J.


Geographical distribution