Abstract
The results of comparative morphological investiga tions of structural characters of seed coat of 12 species of Calanthe R. Br. (Epidendroideae: Orchidaceae) with scanning electron microscope are given. On the basis of results of seed testa ultrastructure investigations of specimens examined two seed types have been recognized – Eulophia and Bletia – within selected species of Calanthe. The assumption concerning relationship between life habit of certain species and seed type within genus Calanthe was made.
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