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

por Simo-Droissart, Murielle, Stévart, Tariq, Sonké, Bonaventure, Sandrine Mayogo, Kamdem, Narcisse, Droissart, Vincent
Publicado 2018