Taxonomic revision of Saxicolella (Podostemaceae), African waterfall plants highly threatened by Hydro-Electric projects Author Cheek, Martin Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey, TW 9 3 AE, UK. m.cheek@kew.org Author Molmou, Denise Herbier National de Guineé, Université de Gamal Abdel Nasser, BP 680, Conakry, République de Guinée. Author Magassouba, Sekou Herbier National de Guineé, Université de Gamal Abdel Nasser, BP 680, Conakry, République de Guinée. Author Ghogue, Jean-Paul Green Connexion, PO Box 1289, Yaoundé, Cameroon & IRAD-National Herbarium of Cameroon Yaoundé, PO Box 1601, Yaoundé, Cameroon. text Kew Bulletin 2022 2022-05-30 77 2 403 433 http://dx.doi.org/10.1007/s12225-022-10019-2 journal article 10.1007/s12225-022-10019-2 8482491c-b7d7-480e-bf86-3591d8193ca0 7599361 Subgenus 3. Kinkonia Cheek subgen. nov. Type species: Sapicolella futa Cheek sp. nov. http://www.ipni.org/urn:lsid:ipni.org:names:77297287-1 Roots radiating from a central point, lacking a central crustose part (or crustose portion minute), narrowly ribbon-like, bifurcating regularly and frequently, shoots only at the sinuses of the bifurcations. Stems highly contracted, inconspicuous. Leaves comprised of concave elliptic base, blade absent or rudimentary, stipules absent. DISTRIBUTION . Guinea-Conakry, Futa Djalon. ETYMOLOGY . Named for the Kinkon Falls at Pita, one of the locations for the only known species.