A. Morphology.- I. Cytology.- II. Morphologie und Anatomie der höheren Pflanzen.- B. Physiology.- I. Plant Lectins (Phytohemagglutinins).- II. Mineral Metabolism. Short and Long Distance Transport.- III. Photosynthesis. Biochemical and Physiological Aspects of Carbon Metabolism.- IV. Metabolism of Organic Acids.- Va) Metabolism of Inorganic Nitrogen Compounds.- Vb) Metabolism of Organic N-Compounds. Ammonium Assimilation in Microorganisms and Plants.- VI. Secondary Plant Substances. Monoterpenes.- VII. Growth.- VIII. Developmental Physiology.- C. Genetics.- I. Mutation. Repair Processes in Mutation Induction.- II. Function of the Genetic Material. Organization and Function of the Eukaryotic Genome.- III. Extrakaryotic Inheritance.- IV. Genetic Control of Reproduction. Sexual Reproduction in Lower Plants.- V. Population Genetics.- D. Taxonomy.- I. Systematik und Phylogenie der Algen.- II. Taxonomy and Phylogeny of Fungi.- III. Systematik der Flechten. Bericht über die Jahre 1974 und 1975 mit einigen Nachträgen.- IV. Systematik der Moose.- V. Systematik der Farnpflanzen.- E. Geobotany.- I. Areal- und Florenkunde (Floristische Geobotanik).- II. The History of Flora and Vegetation During the Quaternary.- III. Vegetation Science (Sociological Geobotany).- IV. Experimental Ecology.
