Benzoxazinoids and iridoid glucosides from four Lamium species

Reassessment of Melittis melissophyllum L. subsp. melissophyllum iridoidic fraction

A new flavonoid and other polar compounds from Galeopsis angustifolia Ehrh. ex Hoffm.

The development of plant population biology (SOLBRIG et al., 1979) as a discipline which connects plant systematics with ecology has been one of the most important trends within recent years, though at present more questions have been asked than answered. Likewise, the study of reproductive biology, notably of tropical plants, has turned into a field of tremendous activity; most of it will be reviewed in this volume under pollination ecology, but the results are of course of great interest for the evolution and systematics of seed plants. Methodological progress has been made in the interpretation of phytochemical data. Apart from that, the trends mentioned in the last review (Progr. Bot. 41, 239) are still of interest. As to the problems of classification in general, the number of cladistic studies has increased, but it is still doubtful if they will have a major impact. Comprehensive, integrated approaches to the systematics and biology of major groups include the Solanaceae symposium (HAWKES et al., 1979), and the resumption of the Naturliche Pflanzenfamilien series with a multi-authored treatment of the Loganiaceae (LEEUWENBERG, 1980).

Lucie H. Fikenscher

Papers

Aucubinartige glucoside als systematische merkmale bei labiaten — II. Galeopsis

Aucubinartige glucoside als systematische merkmale bei labiaten — I. Lamiastrum