A checklist of rheophytes of Cameroon Author Kuetegue, Felix Author Sonke, Bonaventure Author Ameka, Gabriel K. text PhytoKeys 2019 121 81 131 http://dx.doi.org/10.3897/phytokeys.121.29924 journal article http://dx.doi.org/10.3897/phytokeys.121.29924 1314-2003-121-81 B21D393FFFFBFC4EFF96FFA7FFF98263 3484962 10. Inversodicraea kamerunensis Engl., Veg. Erde 9(3, 1): 274 (1915) Ledermanniella kamerunensis (Engl.) C.Cusset, Adansonia ser . 2, 14(2): 274 (1974). Type. Cameroon, Campo, near Dipikar, Aug, Ledermann 440a (YA). Specimen examined. Campo River waterfalls, near Dipikar, 00 Aug 1908, Ledermann 440a (YA). Habitat. Waterfalls in low altitudes. Distribution. Cameroon (Fig. 25 ). Conservation status in Cameroon. Inversodicraea kamerunensis is listed on http://www.iucnredlist.org as Vulnerable ( Ghogue 2017c ). It was assessed by Onana and Cheek (2011) as Critically Endangered. The species is endemic to Cameroon and known from only the type locality; the species has not been collected since 1908. The extent of occurrence and the area of occupancy are both estimated at 4 km2 each. The main threat at this locality is dam construction on Ntem River. I. kamerunensis is here reassessed and Critically Endangered status maintained. IUCN Red List Category: Critically Endangered CRB1+2ab (ii, iii).