Textbook of Theoretical Botany

Principles of plant ecology. A retrospect of ecology. Scope and objetives of ecology. Aspects and subdivisions of ecology. Concepts used in ecology. The plant community in its sociological context. The analysis of the plant community. The nature of the environment. The sub-aerial environment. The biotic environment. The edaphic environment. The fresh-water environment. The marine environment. The productivity of the sea. Sea beaches. Principles of plant geography. A retrospect. Discussion of the aims, methods and principles of plant geography. The geological background. Climate and flora. Distributional areas. Migration and dispersal. Discontinuity. Floristic components in vegetation. Floristic provinces. The influence of man.