Inversodicraea ledermannii Engl., Veg. Erde 9(3, 1): 274 (1915)

Kuetegue, Felix, Sonke, Bonaventure & Ameka, Gabriel K., 2019, A checklist of rheophytes of Cameroon, PhytoKeys 121, pp. 81-131 : 81

11. Inversodicraea ledermannii Engl., Veg. Erde 9(3, 1): 274 (1915)

Ledermanniella ledermannii (Engl.) C.Cusset, Adansonia sér. 2, 14(2): 274 1974)

Type.

Cameroon, South Region, near Kribi, Grand Batanga, Ledermann 225 (YA).

Specimens examined.

SW Region, Korup National Park, 5°01'N, 8°50'E, 50 m, 5-15 Dec 1984, D.W. Thomas 4135A (K, P); near Kribi, Lobe waterfalls, Grand Batanga, Ledermann 225 (U); 6 km from Kribi, Lobe waterfalls, De Wilde 2875 (P, YA).

Habitat.

River rapids.

Distribution.

Angola, Cameroon (Fig. 25 ), Côte d’Ivoire, Gabon, Guinea, Sierra Leone.

Conservation status in Cameroon.

Inversodicraea ledermannii is listed on http://www.iucnredlist.org as Least Concern, globally ( Diop 2017). The taxon is known from five localities. The extent of occurrence of I. ledermannii is about 29,454 km2 and the area of occupancy is about 20 km2. The main threats currently known from the localities are logging, agriculture and touristic activities. Based on these threats, and the continuous decline of vegetation cover in the area, extent and/or quality of habitat, I. ledermannii is currently reassessed as Vulnerable. IUCN Red List Category: Vulnerable VUB2ab (iii).

Figures

Figures 20 - 25. 20 Ixora inundata Hiern 21 Virectaria angustifolia (Hiern) Bremek 22 Virectaria salicoides (C. H. Wright) Bremek 23 Deinbollia angustifolia D. W. Thomas 24 Deinbollia saligna Keay 25 Podostemaceae distribution.