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 Sapicolella submersa (J.B.Hall) C.D.K.Cook & Rutish. ( Cook & Rutishauser 2001: 1165 ) = Pohliella submersa (J.B.Hall) Cheek