Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon Author Cheek, Martin Royal Botanic Gardens, Kew, Richmond, UK m.cheek@kew.org Author Tchiengué, Barthélemy Institute of Agronomic Research and Development, Herbier National Camerounais, Yaoundé, Centrale, Cameroon Author van der Burgt, Xander Identification & Naming, Royal Botanic Gardens, Kew, Richmond, Surrey, UK text PeerJ 2021 2021-02-11 9 1 32 http://dx.doi.org/10.7717/peerj.10689 journal article 10.7717/peerj.10689 c97097e0-264f-44c8-b532-bcb6f7f35b9a 2167-8359 PMC7882137 33614269 5847070 Sect. Zyganthera (N. E. Br.) Engl. ( Engler, 1911 : 49 ) Type (and only) species: Pseudohydrosme buettneri Engl. Zyganthera N. E. Br. (Brown in Thistleton-Dyer, 1901 :160 ). Basionym Male flowers with stamens in pairs; distal half of spadix covered in sterile male flowers; ratio of female:male (including sterile male) spadix portions c.1:4