The Distribution of Arctic Lichens and Thoughts Concerning Their Origin

Abstract The distribution of many Arctic lichens is well known but their place and time of origin is still conjectural. Land bridges are often suggested but continental drift suggests a possible tie to Gondwanaland and Pangaea. This review suggests consideration of the available evidence for such id...

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Bibliographic Details
Published in:The Lichenologist
Main Author: Thomson, J. W.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1995
Subjects:
Online Access:http://dx.doi.org/10.1016/s0024-2829(95)80002-6
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Summary:Abstract The distribution of many Arctic lichens is well known but their place and time of origin is still conjectural. Land bridges are often suggested but continental drift suggests a possible tie to Gondwanaland and Pangaea. This review suggests consideration of the available evidence for such ideas and emphasizes the need for more exact data from molecular studies of living and amber materials to determine the antiquity of the lichen species involved.