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      The chemistry of Pseudocyphellaria impressa S. Lat. in New Zealand

      Wilkins, Alistair L.; James, P.W.
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      Wilkins chemistry.pdf
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      DOI
       10.1017/S0024282979000323
      Link
       journals.cambridge.org
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      Wilkins, A. L., & James, P. W. (1979). The chemistry of Pseudocyphellaria impressa S. Lat. in New Zealand. The Lichenologist, 11(03), 271-281.
      Permanent Research Commons link: https://hdl.handle.net/10289/965
      Abstract
      As part of a detailed study of the nomenclature and taxonomy of the New Zealand

      species of Pseudocyphellaria it has been noted that the chemistry of the P. impressa

      (Hook & Taylor) Vainio aggregate, that is species with a markedly faveolate (honeycomb-

      like) upper surface and a green algal phycobiont, is particularly complex.

      The 45 lichen substances detected fall into four distinct groupings, here designated

      as 'Codings'. The aim of this contribution is to investigate suitable methods for

      revealing this chemical assemblage by t.l.c. and, as far as is currently possible, to

      identify the range of substances. No conscious attempt is made to assign the four

      chemical Codings to particular taxa or species groupings; the taxonomy of the

      group will be discussed elsewhere. The four Codings proved to be remarkably

      uniform and constant considering the range and number of substances involved;

      such variation that occurred was only in the presence and concentration of accessory

      substances.

      Although this work only concerns New Zealand material, similar patterns occur

      in related taxa of the group present in southern South America, south-east Australia

      and Tasmania.
      Date
      1979
      Type
      Journal Article
      Rights
      This article is published in the journal, The Lichenologist. Copyright © British Lichen Society 1979.
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      • Science and Engineering Papers [3073]
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