Eragrostis barteri C.E.Hubb., Fl. W. Trop. Afr. 2: 514 (1936)

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

Eragrostis barteri C.E.Hubb., Fl. W. Trop. Afr. 2: 514 (1936)

Eragrostis fluviatilis A.Chev., Bull. Mus. Nalt. Hist. Nat. sér 2, 20: 472 (1948)

Type.

Nigeria, 1858, C. Barter 877 (syntype: K, K000366508; isotype: P).

Description.

Perennial grass, robust, of about 1 m high; leaves lanceolate; inflorescence in open panicle.

Specimens examined.

Nkokmen II, at 8 km east of Yingui, at the bank of Makombe River, 4°32'N, 10°15'E, 09 Jan 1972, D. van der Zon 10939 (YA). Mpoumé falls on Nyong River, 9 km south of Makak 3°28'N, 11°00'E, 20 Jan 1977, J. Lowe 3188 (YA); Sanaga River at Nkongnjok, 4°10'N, 11°01'E, 12 Jan 1978, J. Lowe 3471 (YA); Kikot (Douala-Bafia road), near bridge, bank of Sanaga, 3°51'N, 11°30'E, 16 Dec 2012, F. Kuetegue 535 (YA).

Habitat.

Among rocks, and sandbanks on riverbed or streams.

Distribution.

Cameroon (Fig. 18 ), Congo, Côte d’Ivoire, Ghana, Mali, Nigeria, Senegal and Sierra Leone.

Conservation status in Cameroon.

Eragrostis barteri was not assessed by Onana and Cheek (2011), nor listed on http://www.iucnredlist.org. The taxon is currently known from 10 localities some of which are on the Sanaga River. The extent of occurrence of the species is about 260,000 km2 and area of occupancy is about 44 km2. The proposed dam on Sanaga River will destroy some habitats of the species. Based on this threat, and the continuous decline of vegetation cover in the area, extent and /or quality of habitat, E. barteri is currently 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.