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New or Interesting British Lichens V* The Lichenologist

Published online by Cambridge University Press:  28 March 2007

B. J. Coppins
Affiliation:
Royal Botanic Garden, Edinburgh EH3 5LR.
P. W. James
Affiliation:
Department of Botany, British Museum (Natural History), Cromwell Road, London SW7 5BD.

Abstract

Notes and keys are provided for British members of the Trapeliaceae. The genus Placynthiella Gyelnik is resurrected to accommodate the Lecidea uliginosa group: P. hyporhoda (Th. Fr.) comb, nov., P. icmalea (Ach.) comb, nov., P. oligotropha (Laundon) comb. nov. and P. uliginosa (Schrader) comb. nov. Aphanopsis Nyl. ex P. Sydow is recognized for the single species A. coenosa (Ach.) comb, nov., and attention is drawn to the enigmatic Biatora humida Kullhem. The Lecidea granulosa group is referred to Trapeliopsis, necessitating four new combinations, T. aeneofusca (Flörke ex Flotow) comb, nov., T. flexuosa (Fr.) comb, nov., T. gelatinosa (Flörke) comb. nov. and T. viridescens (Schrader) comb, nov., and the description of one new species, T. pseudogranulosa sp. nov. Special attention is given to sorediate species of Trapelia, including T. corticola sp. nov. and T. placodioides sp. nov.

Type
Research Article
Copyright
Copyright © British Lichen Society 1984

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Footnotes

*

IV in Lichenologist 11: 139–179 (1979).

References

* IV in Lichenologist 11: 139–179 (1979).