Biophytum talbotii (Baker f.) Hutch. & Dalziel, Fl. W. Trop. Afr. 1: 140 (1927)

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

Biophytum talbotii (Baker f.) Hutch. & Dalziel, Fl. W. Trop. Afr. 1: 140 (1927)

Biophytum kamerunense Engl. & R.Kunth ex Engl., Veg. Erde 9(3,1): 717 (1915)

Oxalis talbotii Baker f., Cat. Pl. Oban 16 (1913)

Type.

Liberia, 02 Nov 1910, Bunting, R. H. 103 (holotype: BM).

Description.

Perennial herb, woody stem, up to 30 cm high; roots spreading; leaves in shape of umbrella; flowers pink.

Specimens examined.

Njabilobé, 54 km southeast of Kribi, 12 Mar 1963, J. & A. Raynal 10425 (YA); Kienke River, Kribi, 2°56'N, 9°55'E, 20 Jun 1969, J. J. Boss 4900 (YA); near Numba, 45 km northeast of Mamfe, 5°50'N, 9°42'E, 18 Aug 1975, R. Letouzey 14331 (YA); Mamfe road, near Numba, 16 Dec 2012, F. Kuetegue 400 (YA).

Habitat.

Riverbeds and earthbanks of shaded forest streams, periodically inundated rocks in rivers; in rainforest.

Distribution.

Cameroon (Fig. 15 ), Liberia and Nigeria.

Conservation status in Cameroon.

Biophytum talbotii is not listed on http://www.iucnredlist.org nor assessed by Onana and Cheek (2011). The taxon is currently known from 13 localities. Extent of occurrence of this species is about 38,000 km2 and the area of occupancy is about 56 km2. Forest logging is the main threat at these habitats. Based on this threat and the continuous decline of vegetation cover in the area, extent and /or quality of habitat B. talbotii is here assessed as Vulnerable. IUCN Red List Category: Vulnerable VU B2ab (ii, iii).

Figures

Figures 11 - 19. 11 Cyperus cataractarum K. Schum ex Engl. 12 Plectranthus cataractarum B. J. Pollard 13 Calvoa stenophylla Jacq. - Fel. 14 Eugenia dusenii Engl. 15 Biophytum talbotii (Baker f.) Hutch. & Dalziel 16 Biophytum zenkeri Guillaumin 17 Pandanus satabiei Huynh 18 Eragrostis barteri C. E. Hubb. 19 Ixora euosmia K. Schum.