The title picture shows the light blue to violet Commelina communis, a flower used in Japan for coloring paper. Its petals contain commelinin, a blue anthocyanin, whose extremely complex structure was elucidated in the 1980s by the late T. Goto and his school, In this issue, an article written by T. Goto together with T. Kondo (p. 17ff) describes in detail how the anthocyanins give rise to different colors. The flower shown on the cover is not only intended to draw attention to an excellent review article, however. It symbolizes this entire issue.
Anniversary Flowers: This issue begins the thirtiest volume of the International Edition of Angewandte Chemie. The English edition has long helped Angewandte Chemie to attract authors and readers worldwide. This has been especially true during the last few years. The circulation of both the English and German editions continues to grow. The percentage of articles by foreign authors has increased, too, from 25% at the beginning of the 1980s to almost 50% last year. Most foreign manuscripts received in 1990 were submitted from Western Europe (45%), North America (30%), and Japan (12%). These numbers reflect the growing approval of authors and readers alike and motivate us to improve the journal still further in the future.
Greeting Flowers: During the second half of 1990, it became apparent that the publication of the two very similar journals Angewandte Chemie and Zeitschrift für Chemie no longer made sense. The latter journal ceased publication at the end of 1990. We extend a welcoming hand to the many readers and authors of Zeitschrift, für Chemie.
Premiere Flowers: Excellence always demands improvement. In this issue, we begin a new section called “Highlights”. The virtual flood of short communications, full research articles, and conference reports makes it increasingly difficult to avoid missing an important recent development. This is true not only for chemistry as a whole but even for a narrow field of research. The review articles in Angewandte Chemie have helped readers to obtain an overview of specific areas and trends. The new section Highlights, on the other hand, is intended to awaken the reader's awareness to new developments in statu nascendi as well as to important results from all areas of chemistry (see also Notice to Authors in this issue).