Hellmut R. Toelken

Hellmut R. Toelken (born 1939) is a South Australian botanist. He retired in December 2008 from the position of senior biologist at the State Herbarium of South Australia, but remains an honorary research associate. Earlier he was with the Botanical Research Institute, Department of Agricultural Technical Services, Pretoria, S Africa.

His interests include the genera Kunzea, Hibbertia, Crassula and Carpobrotus. He is the author of the book A Revision of the Genus Crassula in Southern Africa.[1][2][3][4] The standard author abbreviation Toelken is used to indicate this person as the author when citing a botanical name.[5]

References
  1. "Harvard University Herbaria & Libraries - Index of Botanists - Toelken, Helmut R." Harvard University Herbaria. Harvard University. Retrieved 24 November 2017.
  2. "Dr Hellmut Toelken". Government of South Australia Department of Environment, Water and Natural Resources. Retrieved 25 November 2017.
  3. Tölken, Helmut R. (1977). A revision of the genus Crassula in southern Africa. Rondebosch: Bolus Herbarium, University of Cape Town. ISBN 079920207X.
  4. Jessop, J. P. (John Peter), 1939-; Toelken, H. R. (Hellmut Richard), 1939-; Black, J. M. (John McConnell), 1855-1951. Flora of South Australia; Flora and Fauna of South Australia Handbooks Committee; Jessop, J; Toelken, H (1986), Flora of South Australia (4th ed.), South Australian Government Printing Division, ISBN 978-0-7243-4648-6{{citation}}: CS1 maint: multiple names: authors list (link)
  5. International Plant Names Index.  Toelken.
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