Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon

Abstract : Recent field inventories and taxonomic research in Central Africa have resulted in the discovery of many new orchid species. Five specimens of an apparently new Angraecum species were collected in Gabon and Cameroon. They stand out for their hanging habit and short zigzag stem. Morphology of leaves and habit is somewhat comparable to A. cultriforme and A. stolzii, two species from East Africa. Flowers of the novelty share the general morphology of A. pyriforme from which the new species is distinguished by being smaller and with a different lip-spur ratio. Here we show that these five specimens represent a new species, described here as Angraecum lanceolatum. The distinguishing traits include thin lanceolate leaves, convolute distally, with a rhombic lip shape. Dichotomous key to four Central African species of sect. Conchoglossum and a table of the diagnostic characters of the seven related Continental African Angraecum taxa are included here. A preliminary assessment of the conservation status of A. lanceolatum is provided, using the IUCN Red List Categories and Criteria.
Liste complète des métadonnées

Littérature citée [21 références]  Voir  Masquer  Télécharger

https://hal.umontpellier.fr/hal-02102845
Contributeur : Yannick Brohard <>
Soumis le : mercredi 17 avril 2019 - 16:54:44
Dernière modification le : jeudi 8 août 2019 - 15:50:14

Fichier

Phytokeys_2016_61_Droissart_et...
Fichiers éditeurs autorisés sur une archive ouverte

Identifiants

Collections

Citation

Vladimir Ječmenica, Vincent Droissart, Nausicaa Noret, Tariq Stévart. Taxonomy of Atlantic Central African orchids 5. A new species of Angraecum sect. Conchoglossum (Orchidaceae, Angraecinae) from Gabon and Cameroon. PhytoKeys, Pensoft, 2016, 61, pp.61-71. ⟨10.3897/phytokeys.61.7017⟩. ⟨hal-02102845⟩

Partager

Métriques

Consultations de la notice

89

Téléchargements de fichiers

100