Ledermanniella pusilla (Warm.) C.Cusset, Adansonia ser. 2, 14(2): 274 (1974)

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

26. Ledermanniella pusilla (Warm.) C.Cusset, Adansonia ser. 2, 14(2): 274 (1974)

Dicraeanthus pusillus C.H.Wright, Fl. Trop. Afr. 6(1.1): 127 (1909)

Sphaerothylax pusilla Warm Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd. VI, 9: 146 (1899)

Type.

Cameroun, Bipindi, G. Zenker 1050 (holotype: B; isotype: G). Basionym: Sphaerothylax pusilla Warm., Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd. VI, 9: 146 (1899).

Specimens examined.

7 km south of Kribi, Lobe waterfall, J.J. Bos 3598 (WAG); Lokoundje waterfall, Bipindi, G. Zenker 1050 (G, K, L, M, U, Z).

Habitat.

Waterfalls.

Distribution.

Cameroon (Fig. 25 ), Democratic Republic of Cong and Gabon.

Conservation status in Cameroon.

Ledermanniella pusilla is listed on http://www.iucnredlist.org globally as Endangered ( Ghogue 2010h). The taxon is known from two localities. The extent of occurrence is about 9,042 km2 and the area of occupancy is about 16 km2. The waterfalls at Lobe are a huge tourist center and the activities have caused a deterioration in the habitat of the species. The species is here reassessed as Endangered. IUCN Red List Category: Endangered ENB1 + 2ab (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.