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ABSTRACT
A small pond in Hinewai Reserve, Banks Peninsula, Canterbury has revealed a phytoplankton bloom consisting of an unusually minute desmid which has consequently been difficult to observe. It is described, assigned to the genus Cosmarium and compared with superficially similar species. It has unique features which justify assigning it to a new species Cosmarium wilsonii David B. Williamson & C.F. Carter. It is named after the Reserve kaitiaki (manager) Dr H. D. Wilson.
Acknowledgements
Our grateful thanks go to Dr Paul Broady for sending the sample and much information about Hinewai Reserve, its pond and local vegetation. We are also indebted to Dr Frans Kouwets for examining the sample and providing helpful comments. Dr Hugh D. Wilson first alerted Dr Broady to the green bloom in the pond. The referees involved with this paper have been immensely helpful in improving the text.
Disclosure statement
No potential conflict of interest was reported by the authors.