Progress in Botany

With one volume each year, this review series keeps scientists and advanced students informed of the latest developments and results in all areas of the plant sciences. Starting with this volume, the sections of PROGRESS IN BOTANY have been restructured. The new sections - Genetics - Cell Biology and Physiology - Systematics and Comparative Morphology - Ecology and Vegetation Science - correspond to the subdivision of the field of botany generally used by the scientific community.