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de Kok, Rogier P. J.

Job title: 

Assistant Keeper of Regional Teams

Regional Teams
Joined Kew: 


Foreign languages: 


Qualifications and appointments: 
  • Doctorandus (MSc), Rijkuniversiteit Leiden, 1993
  • DPhil, Univ. Oxford, 1998
  • Board, Flora Malesiana
  • Council, Systematics Association

Conservation and systematics of SE Asian plants; families Verbenaceae and Lamiaceae in particular.

The generic definitions within the SE Asian Verbenaceae/Labiatae are confusing at the moment. The genera are taxonomically complex and many problematic species occur within SE Asia. Redefining generic boundaries and producing floristic treatments for the region is the main focus of current taxonomic research. The SE Asia team is currently running two projects funded by Darwin initiative grants both of which require a broad knowledge of the flora of SE Asia and Indochina. The first will assess and conserve plant diversity in commercially managed tropical rainforests in Sabah (Malaysia). The second will produce a Field Guide to the Forest Trees of Southern Thailand. A recent joint Leiden/Kew initiative produced an interactive key to Malaysian Seed plants which has since been published online. Additional responsibilities involve leading the SE Asian Team and managing the curation and research within the regional teams.

Selected publications: 

Sothers, C., Prance, G.T., Buerki, S., De Kok, R.P.J. &, Chase, M.W. (2014) Taxonomic novelties in Neotropical Chrysobalanaceae: towards a monophyletic Couepia. Phytotaxa Phytotaxa 172 (2): 176 – 200

R.P.J. de Kok (2013) The genus Premna L. (Lamiaceae) in the Flora Malesiana area. Kew Bulletin 68: 55 – 84.

Callmander, M.W., Phillipson, P.B., Wearn, J.A. & de Kok, R.P.J. (2013) Adieu Adelosa Blume (Lamiaceae): Further observations on Rotheca Raf. for Madagascar. Candollea 68: 316 – 320.

Benu, A.N., Kadati W.D., de Kok R.P.J., Briggs, Utteridge T.M.A., Perwani N.M.D., Howe J., Maduarta I.M., Wenten I.K., Sujata I.K. & Cunningham A.B. (2013) Plants of Boti, and their uses in the traditions of Boti, West Timor, Indonesia. Bebali Foundation & Kew. 

R.P.J. de Kok (2012) A revision of the genus Gmelina L. (Lamiaceae). Kew Bulletin 67: 293 – 329