Atlas Of Ferns Of The British Isles

OSMUNDACEAE
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10.1
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10.1 Osmunda regalis L.
A sub-Atlantic species reaching the northern limit of its natural
distribution in Zetland (v.c. 112). It is a species often removed
from the wild and introduced into gardens, from which spores
spread naturally, thus its native occurrence in some parts of
Britain is difficult to assess. Its distribution shows that it prefers
a high rainfall. It is a feature of western bogs which receive
considerable base cations from salt-laden winds. Further inland
it is characteristic of valley mires.
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