Non-phloroglucinol lipophilic compounds of the glandular excrete of Dryopteris assirnilis S. WALKER have been analyzed from the internal glandular hairs of the rhizome. A relationship between the compounds identified and the lipid droplets visible in electron micrographs of the glandular cytoplast is proposed.
The occurrence of various hydrocarbon, fatty acid and terpenoid constituents in glandular cells in the rhizomes of three Dryopteris fern species has been evaluated by statistical treatment of quantitative data from gas chromatographic analysis. The results obtained suggest complicated interrelationships, presumably resulting from the excretion process, between representatives of the three types of compounds. The species investigated show differences as to these interrelationships.
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