Kew Bulletin

, 73:12 | Cite as

A revised key to the Warneckea species of Cameroon, and description of Warneckea ngutiensis (Melastomataceae-Olisbeoideae), a new Critically Endangered rainforest shrub

  • Robert Douglas Stone
  • Martin Cheek


Warneckea ngutiensis R. D. Stone sp. nov. (Melastomataceae-Olisbeoideae) is described from near Nguti in SW Region, Cameroon. Unique in section Strychnoides in having only a vestigial staminal oil gland, this rainforest shrub is Critically Endangered due to an oil palm plantation project.

Key Words

Banyang Mbo conservation Earthwatch extinction Herakles oil palm plantation 



The authors are grateful to the National Herbarium of Cameroon-IRAD-MINRESI for permission to collect specimens in Cameroon, to WCS Cameroon for accommodation in the Banyang Mbo Research Station, and to Earthwatch Europe for supporting the survey by sponsoring costs of the participants. The Darwin Initiative also supported elements of this survey. Janis Shillito typed the manuscript. Two anonymous reviewers are thanked for comments on an earlier version of the manuscript.


  1. Cable, S. & Cheek, M. (1998). The Plants of Mt Cameroon. A Conservation Checklist. Royal Botanic Gardens, Kew.Google Scholar
  2. Cheek, M. (2000). A synoptic revision of Ancistrocladus (Ancistrocladaceae) in Africa, with a new species from western Cameroon. Kew Bull. 55: 871 – 882.CrossRefGoogle Scholar
  3. ____ (2003). A new species of Ledermanniella (Podostemaceae) from western Cameroon. Kew Bull. 58: 733 – 737.Google Scholar
  4. ____ & Cable, S. (1997). Plant Inventory for conservation management: the Kew-Earthwatch programme in Western Cameroon, 1993 – 96. In: S. Doolan (ed.), African Rainforests and the Conservation of Biodiversity, pp. 29 – 38. Earthwatch Europe, Oxford.Google Scholar
  5. ____, Pollard, B. J., Darbyshire, I., Onana, J.-M. & Wild, C. (2004). The plants of Kupe, Mwanenguba and the Bakossi Mountains, Cameroon. A Conservation Checklist. Royal Botanic Gardens, Kew.Google Scholar
  6. ____, Harvey, Y. & Onana, J.-M. (2011). The Plants of Mefou Proposed National Park, Yaoundé, Cameroon. A Conservation Checklist. Royal Botanic Gardens, Kew.Google Scholar
  7. ____, Mackinder, B., Gosline, G., Onana, J.-M. & Achoundong, G. (2001). The phytogeography and flora of western Cameroon and the Cross River-Sanaga River interval. Syst. & Geogr. Pl. 71: 1097 – 1100.Google Scholar
  8. ____, Williams, S. & Etuge, M. (2003). Kupea martinetugei, a new genus and species of Triuridaceae from western Cameroon. Kew Bull. 58: 225 – 228.Google Scholar
  9. ____ & Onana, J.-M. (2011). Red Data Species in Cameroon, a Guide for Secondary School Teachers. Royal Botanic Gardens, Kew.Google Scholar
  10. Darbyshire, I., Anderson, S., Asatryan, A., Byfield, A., Cheek, M., Clubbe, C., Ghrabi, Z., Harris, T., Heatubun, C. D., Kalema, J., Magassouba, S., McCarthy, B., Milliken, W., de Montmollin, B., Nic Lughadha, E., Onana, J. M., Saıdou, D., Sarbu, A., Shrestha, K. & Radford, E. A. (2017). Important Plant Areas: revised selection criteria for a global approach to plant conservation. Biodivers. Conserv. 26: 1767 – 1800.
  11. Gosline, G. & Cheek, M. (1998). A new species of Diospyros (Ebenaceae) from Southwest Cameroon. Kew Bull. 53: 461 – 465.Google Scholar
  12. Harvey, Y., Pollard, B. J., Darbyshire, I., Onana, J.-M. & Cheek, M. (2004). The Plants of Bali Ngemba Forest Reserve. Cameroon. A Conservation Checklist, Royal Botanic Gardens, Kew.Google Scholar
  13. ____, Tchiengue, B. & Cheek, M. (2010). The Plants of the Lebialem Highlands, A Conservation Checklist . Royal Botanic Gardens, Kew.Google Scholar
  14. IUCN (2012). IUCN Red List Categories and Criteria: Version 3.1, Second edition. IUCN, Gland and Cambridge.Google Scholar
  15. Jacques-Félix, H. (1983). Mélastomatacées, In: B. Satabié & J.-F. Leroy (eds), Flore du Cameroun Vol. 24. Délégation Générale à la Recherche Scientifique et Technique, Yaoundé.Google Scholar
  16. Litt, A. & Cheek, M. (2002). Korupodendron songweanum, a new genus of Vochysiaceae from West-central Africa. Brittonia 54(1): 13 – 17.CrossRefGoogle Scholar
  17. Onana, J.-M. (2011). The Vascular Plants of Cameroon, A Taxonomic Checklist with IUCN Assessments. Flore Du Cameroun 39. Ministry of Scientific Research and Innovation, Yaoundé.Google Scholar
  18. ____ & Cheek, M. (2011). Red Data Book of the Flowering Plants of Cameroon. Royal Botanic Gardens, Kew.Google Scholar
  19. Stoffelen, P., Cheek, M., Bridson, D. & Robbrecht, E. (1997). A new species of Coffea (Rubiaceae) and notes on Mt Kupe (Cameroon). Kew Bull. 52: 989 – 994.CrossRefGoogle Scholar
  20. Stone, R. D. (2006). Phylogeny of major lineages in Melastomataceae, subfamily Olisbeoideae: utility of nuclear glyceraldehyde 3-phosphate dehydrogenase (GapC) gene sequences. Syst. Bot. 31: 107 – 121.CrossRefGoogle Scholar
  21. ____ & Andreasen, K. (2010). The Afro-Madagascan genus Warneckea (Melastomataceae): molecular systematics and revised infrageneric classification. Taxon 59: 83 – 92.Google Scholar
  22. ____, Ghogue J.-P. & Cheek, M. (2008). Revised treatment of Memecylon sect. Afzeliana (Melastomataceae-Olisbeoideae), including three new species from Cameroon. Kew Bull. 63: 227 – 241.Google Scholar
  23. ____, ____ & Cheek, M. (2009). Warneckea austro-occidentalis, a new species from Cameroon and Nigeria, and a re-evaluation of W. fascicularis var. mangrovensis (Melastomataceae-Olisbeoideae). Kew Bull. 64: 307 – 312.Google Scholar

Copyright information

© The Board of Trustees of the Royal Botanic Gardens, Kew 2018

Authors and Affiliations

  1. 1.School of Life SciencesUniversity of KwaZulu-NatalPietermaritzburgSouth Africa
  2. 2.Herbarium, Royal Botanic Gardens, KewSurreyUK

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