8. Erysimum sect. Cheiranthus. A. Taxonomy, by S. Snogerup.
9. Erysimum sect. Cheiranthus. B. Variation and evolution in the small-population system, by S. Snogerup.
16. Biosystematics of the Nigella arvensis complex, with special reference to the problem of non-adaptive radiation, by A. Strid.
20. Biosystematics of the Malcolmia maritima complex, by A. L. Stork.
21. Biosystematic studies in the Allium ampeloprasum complex, by R. von Bothmer.