Dicraeanthus ramosus
A checklist of rheophytes of Cameroon
Kuetegue, Felix
Sonke, Bonaventure
Ameka, Gabriel K.
PhytoKeys
2019
121
81
131
F48558A5-6A32-5CF9-B187-BE3F1BE5F09B
Engl., Bot. Jahrb. Syst. 38 (1): 96 (1905)
Engl., Bot. Jahrb. Syst. 38 (1): 96
1905
Magnoliopsida
Podostemaceae
Dicraeanthus
CoL
Plantae
Dicraeanthus africanus
Malpighiales
0
81
Tracheophyta
species
africanus
Dicraeanthus ramosusH.E.Hess, Ber. Geobot. Inst. Eidg. Techn. Hochsch. RuebelHeft 32: 187 (1961).
Type. Cameroon, Winkler 901(holotype: B).
Specimens examined. Edea at Sanaga waterfall, Annet 498(P); 8 km S Kribi Lobe fall, J.J. Bos 3590, 3887, 3888(K, WAG); Ngaoundere, Vina waterfall, Dulieu 4(P); Natchigal, 62 km southeast of Bafia, J. & A. Raynal 10544(P).
Habitat. River rapids and waterfalls.
Distribution. Cameroon (Fig. 25), Gabon.
Conservation status in Cameroon. Dicraeanthus africanushas been assessed for the IUCN Red List, globally, in 2007 as Least Concern ( Ghogue 2010b). This species was not assessed by Onana and Cheek (2011). Two localities, waterfalls, are known for this species. The extent of occurrence and the area of occupancy are both estimated at less than 10 km2. There are currently two major threats to the survival of this species at the Edea and Lobe waterfalls. First is the planned hydropower dam on the Sanaga River. Secondly the waterfalls on Lobe River is a big tourist attraction site. The dam across the river and activities (e.g., trampling) of tourists will adversely impact the habitats of the species and affect its survival. D. africanusis currently reassessed as Critically Endangered. IUCN Red List Category: Critically Endangered CRB1+2ab (iii).