Abstract
In August of 1987 a seventh joint mission has been organized for collecting indigenous material of cultivated plants which went to remote mountainous areas beyond the main ridge of Great Caucasus into the historical provinces of Chevsuretia and Tushetia. Since some decades drastic gene-erosion had happened caused by the extreme decrease of crop cultivation in these areas. Thus the collected material represents only a small fraction of the former diversity of local crop races. The collection although of small size (75 accessions, among them 30 cereal, 23 legume and 22 vegetable and other crop samples) is of special importance because it represents highly endangered varieties. Other taxa formerly widely cultivated in these regions disappeared already completely (e.g.Triticum carthlicum, Vicia faba, Linum usitatissimum). Some examples of the collection have been characterized in detail.
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