Taxonomy is fundamentally a descriptive and highly documented science. Its literature is voluminous and constitutes so vital a part of its structure that, irrespective of whether the problem is one of identification of an unknown plant, solution of a nomenclatural puzzle, or a monographic or floristic study, acquaintanceship must be made with the more important publications of the subject. Every [...]
The following points highlight the thirty-six important Swingle’s principles for plant classification. Swingle’s Principle # 1. Plant relationships are up and down genetic lines and these must constitute the framework of phylogenetic taxonomy. Swingle’s Principle # 2. Some evolutionary processes are progressive while others are regressive. Swingle’s Principle # 3. Evolution does not necessarily involve all organs of the plant [...]
The below mentioned article provides an overview on Families of Angiosperms. Angiosperms = Ovules or seeds enclosed in the ovary. I. Dicotyledons. II. Monocotyledons I. Dicotyledons: Flowers mostly tetra or pentamerous; leaves net veined; cotyledons usually two; stem commonly with vascular bundles arranged in a ring and open. This class is divided into polypetalae, gamopetalae and monochlamydeae. A. Polypetalae: Flowers [...]