A. Morphology.- I. Cytology.- II. Morphologie und Histologie der höheren Pflanze: Vegetative Anatomie der Spermatophyta.- B. Physiology.- I. Cell Electrophysiology and Membrane Transport.- II. Plant Water Relations..- III. Mineral Nutrition: Response of Plants to Trace Elements..- IV. Photosynthesis. Carbon Metabolism: The Profound Effects of Illumination on the Metabolism of Photosynthetic Cells.- V. Carbohydrate Metabolism..- VI. Metabolism of Organic N-Compounds: Ammonium Assimilation and Nitrogen Partitioning..- VII. Secondary Plant Substances. Simple Amines, Pyrrolizidine, and Quinolizidine.- VIII. Growth.- IX. Developmental Physiology.- X. Physiology of Movement.- C. Genetics.- I. Replication..- II. Recombination. Recombination Following DNA Transfer.- III. Mutation: Site-Directed Mutagenesis (Reversed Genetics)..- IV. Function of Genetic Material. Gene Structure, Gene Function, and Genetic Regulation of Metabolism in Bacteria and Fungi..- V. Extranuclear Inheritance.- VI. Genetic Control of Reproduction..- D. Taxonomy.- I. Systematics and Evolution of the Algae.- II. Taxonomy and Phylogeny of Fungi.- III. Systematik der Flechten.- IV. Systematics of the Pteridophytes.- E. Geobotany.- I. The History of Flora and Vegetation During theQuaternary.- II. Vegetation Science (Sociological Geobotany).