Taxonomy
Synonyms
Tylophora tapeinogyne var. glabrata Schltr. • Tylophora brackenridgei A.GrayRed List Status -
Least Concern (LC) , assessed in 24/10/2019
Vincetoxicum biglandulosum is an indigenous species from New Caledonia largely distributed across the Grande Terre as well as Ile des Pins. This species is very common in New Caledonia and is an ubiquist species growing on 3 main substrates (ultramafic, volcano-sedimentary and calcareous substrates) and habitats (dry forests, humid forests and shrubland). It occurs at an altitude range of 2 and 600 m asl. The high decline of dry forest and the bushfire threats towards the south western populations are the main threats for this species. Despite having an Area of Occupancy (AOO) and an Extent of Occurrence (EOO) equal to 336 and 72,913 km² respectively, Vincetoxicum biglandulosuma is considered to be a common species in New Caledonia. It is not thought to approach the conditions for listing as threatened under any criterion and is listed as Least Concern (LC).
Geographical area
It is an indigenous species from New Caledonia largely distributed across the Grande Terre as well as Ile des Pins.
Population
It is very common in New Caledonia.
Habitat
It is common in New Caledonia and is an ubiquist species growing on 3 main substrates (ultramafic, volcano-sedimentary and calcareous substrates) and habitats (dry forests, humid forests and shrubland). It occurs at an altitude range of 2 and 600 m asl.
Threats
Vincetoxicum biglandulosum does not appear to be significantly threatened at the moment. Though some subpopulations may be impacted by bushfires.
Conservation
Vincetoxicum biglandulosum is protected by legislation in New Caledonia and it does occur in only 1 protected area: Vallée de la Thy.
Bibliography
Endemia.nc 2016. Faune et Flore de Nouvelle-Calédonie.
Boiteau Pierre avec collaboration de Lucie Allorge 1982. Flore de la Nouvelle Calédonie et dépendances. Volume 10 : Apocynacées.
Meve U., Gâteblé G. & Liede-Schumann S. 2017. Taxonomic novelties in Apocynaceae subfam. Asclepiadoideae from New Caledonia. Adansonia(sér.3,39(1)) , p.55-70.
LIEDE-SCHUMANN S., MEVE U., GÂTEBLÉ G., BARRIERA G. & FICI S. 2020. Apocynaceae p.p., Phellinaceae, Capparaceae : Flore de la Nouvelle-Calédonie.
Munzinger J., Morat Ph., Jaffré T., Gâteblé G., Pillon Y., Rouhan G., Bruy, D., Veillon J.-M., & M. Chalopin 2020. FLORICAL: Checklist of the vascular indigenous flora of New Caledonia [continuously updated].
Experts
Assessor(s): Amice, R., Bruy, D., Butin, J., Cazé, H., Fleurot, D., Héquet, V., Lannuzel, G., Laudereau, C., Mandaoué, L., Vandrot, H., Pillon, Y.
Reviewer(s): Veillon, J.
Facilitator(s): Meyer, S., Warimavute, G., Gâteblé, G.