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 fifteen important Thorne’s principles (1958) of plant classification. Thorne’s Principle # 1. Existing species have descended with change from pre-existing species and are therefore, the products of evolutionary forces. Thorne’s Principle # 2. Ancestral conditions and trends of specialisation are often recognisable in the organs, tissues and cells of living and fossil angiosperms. Thorne’s Principle [...]
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 [...]