A. Morphology

I. Cytology
a) Special Cytology: Cytology and Morphogenesis of the Prokaryotic Cell
b) Cytology and Morphogenesis of the Fungal Cell
II. Morphologie und Histologie der höheren Pflanzen
a) Vegetative Anatomie der Spermatophyta
B. Physiology
I. Plant Water Relations
II. Mineral Nutrition: Vacuoles and Tonoplasts
III. Photosynthesis. Carbon Metabolism: On Land and at Sea
IV. Metabolism of Organic Acids
V. Metabolism of Organic N-Compounds Ammonium Assimilation and Amino Acid Metabolism
VI. Secondary Plant Substances. Monoterpenes
VII. Developmental Physiology
VIII. Physiology of Movement
C. Genetics
I. Replication
II. Recombination
a) DNA Transformation in Cyanobacteria, Algae and Fungi; Trends and Perspectives
III. Mutagenesis
IV. Extrakaryotic Inheritance: Mitochondrial Genetics
V. Phytopathology
a) Biological Control of Plant Pathogenic Fungi
D. Taxonomy
I. Systematics and Evolution of the Algae
II. Taxonomy and Phylogeny of Fungi
III. Systematics of Lichenized Fungi
IV. Systematics of the Bryophytes
V. Systematics of the Pteridophytes
E. Geobotany
I. The History of Flora and Vegetation During the Quaternary
II. Vegetation Science (Sociological Geobotany)
F. Special Topics
I. Symbiosen: Mykorrhiza
a) Ektomykorrhiza
b) Endomycorrhizae.