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Begonia duncan-thomasii

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA CUCURBITALES BEGONIACEAE

Scientific Name: Begonia duncan-thomasii
Species Authority: Sosef

Assessment Information [top]

Red List Category & Criteria: Vulnerable B2ab(iii) ver 3.1
Year Published: 2004
Date Assessed: 2004-04-30
Assessor(s): Cheek, M.
Reviewer(s): Hilton-Taylor, C. & Pollock, C.M. (Red List Programme Office)
Justification:
Described by Sosef in 1992 and known only from four pre-1995 collections, all but one of which are in Kupe-Bakossi, the exception being one from the Rumpi Hills. Three collections were made by Duncan Thomas. These three sites are at the summit and on the west side of Mt Kupe, and west of Bangem. Two more collections from a fifth site near Kodmin at Abo'h were added in 1998. Although the cliff faces where this species grows are unlikely to be disturbed, clearance of the adjoining forest for fuel and agriculture could endanger this species by removing the shade necessary for its survival.

Geographic Range [top]

Range Description: Recorded from Cameroon: Kupe-Bakossi and Rumpi Hills.
Countries:
Native:
Cameroon
Range Map: Click here to open the map viewer and explore range.

Habitat and Ecology [top]

Habitat and Ecology: B. duncan-thomasii appears to be restricted to shady, damp, vertical rock-faces, in forest, sometimes with the rare Nodonema lineatum, 1,550–2,000 m alt.
Systems: Terrestrial

Threats [top]

Major Threat(s): While cliff faces generally are unlikely to be disturbed, clearance of adjoining forest for fuel and agriculture could endanger this species by removing the shade necessary for its survival.

Conservation Actions [top]

Conservation Actions: The five sites of this species merit revisiting and regular monitoring for numbers of individuals and threats.

Citation: Cheek, M. 2004. Begonia duncan-thomasii. The IUCN Red List of Threatened Species. Version 2014.2. <www.iucnredlist.org>. Downloaded on 02 September 2014.
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