New taxonomic and conservation status of Ossiculum (Vandeae, Orchidaceae), a highly threatened and narrow-endemic angraecoid orchid from Central Africa

By

Simo-Droissart, Murielle
Stévart, Tariq
Sonké, Bonaventure
Mayogo, Sandrine
Kamdem, Narcisse
Droissart, Vincent

Type

Article

Date of Publication

2018

Original Publication

PhytoKeys

Volume

98

Pages

85-97

Subjects

Angraecoid orchids , Calyptrochilum , ex situ conservation , IUCN Red List Categories and Criteria , Mungo River Forest Reserve , Odzala National Park , Ossiculum aurantiacum

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.98.23511

 

Abstract

In the context of producing a revised phylogenetic Linnean taxonomy of angraecoid orchids, the monotypic and narrow-endemic genus Ossiculum is synonymised with Calyptrochilum. Accordingly, a new combination in Calyptrochilum is proposed for Ossiculumaurantiacum. The morphological and DNA-based evidence for this transfer is discussed. Moreover, Calyptrochilumaurantiacum is here firstly reported outside Cameroon, with a record from the Republic of the Congo. The Red List conservation status of this species is reassessed and it is to be downgraded from “Critically Endangered” (CR) to “Endangered” (EN), following the recent discovery of additional subpopulations in Cameroon.