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Habitat adaptation of filmy ferns
Filmy ferns are traditionally seen as rare plants of sheltered, shady, humid places. Proctor (pp. 717-727) shows that the two British species of Hymenophyllum have overlapping light-response ranges depending on habitat and season, whilst differing substantially in their levels of desiccation tolerance. Aspects of water relations and ecophysiological adaptations of filmy ferns are similar to those of bryophytes.
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