42. Winklerella dichotoma Engl., Bot. Jahrb. Syst. 38(1): 97 (1905)

Type.

Cameroon, Edea, 30 Jan 1951, Winkler 900 (holotype: B).

Specimens examined.

Edea waterfall, Winkler 900 (B); Edea waterfall, 30 Jan 1951, Zehnder 271, 275, 277 (BR, ZT).

Habitat.

River rapids and waterfalls.

Distribution.

Cameroon (Fig. 25).

Conservation status in Cameroon.

Winklerella dichotoma is list on http://www.iucnredlist.org as Critically Endangered (Ghogue 2010r). The species is endemic to Cameroon and only known from the Edea waterfalls on the Sanaga River. There is a hydropower dam built on the river at the collecting locality of the species. The area of occupancy and extent of occurrence are estimated at 2 km2 each. The earlier assessment of Ghogue (2010r) as Critically Endangered is maintained. IUCN Red List Category: Critically Endangered B1ab (iii) +2ab (iii).