Dicraeanthus africanus Engl., Bot. Jahrb. Syst. 38(1): 96 (1905)

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

publication ID

http://dx.doi.org/10.3897/phytokeys.121.29924

persistent identifier

http://treatment.plazi.org/id/30DE8F77-CD55-E763-2DDA-BCEA37DDC091

treatment provided by

PhytoKeys by Pensoft

scientific name

Dicraeanthus africanus Engl., Bot. Jahrb. Syst. 38(1): 96 (1905)
status

 

1. Dicraeanthus africanus Engl., Bot. Jahrb. Syst. 38(1): 96 (1905)  

Dicraeanthus ramosus   H.E.Hess, Ber. Geobot. Inst. Eidg. Techn. Hochsch. Rübel Heft 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 View Figures 20–25 ), Gabon.

Conservation status in Cameroon.

Dicraeanthus africanus   has 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. africanus   is currently reassessed as Critically Endangered. IUCN Red List Category: Critically Endangered CRB1+2ab (iii).

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Malpighiales

Family

Podostemaceae

Genus

Dicraeanthus

Loc

Dicraeanthus africanus Engl., Bot. Jahrb. Syst. 38(1): 96 (1905)

Kuetegue, Felix, Sonke, Bonaventure & Ameka, Gabriel K. 2019
2019
Loc

Dicraeanthus ramosus

Hess 1961
1961