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(1970). Chemotaxonomic aspects of the distribution of acyclic sugar alcohols in leafy liverworts I. Chemical evidence for the taxonomic position of Plagiochila carringtonii (Balfour) Grolle. Transactions of the British Bryological Society: Vol. 6, No. 1, pp. 108-113.
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D. H. LEWIS (1970) studied this question.
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