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 [...]
In this article we will discuss about:- 1. Introduction to Modern Trends 2. Morphology in Relation to Taxonomy 3. Anatomy 4. Embryology 5. Palynology 6. Cytology 7. Ecology. Contents: Introduction to Modern Trends in Relation to Taxonomy Morphology in Relation to Taxonomy Anatomy in Relation to Taxonomy Embryology in Relation to Taxonomy Palynology in Relation to Taxonomy Cytology in Relation [...]
In this article we will discuss about the contribution of various botanists towards plant classification. 1. Sexual (or Artificial) System of Linnaeus: Carolus Linnaeus (1707-1778), a Swedish naturalist published a sexual system of classification in Hortus Uplandicus (1730) and elaborated it in his Genera Plantarum (1737). The latter work is of importance in modern taxonomy as a source of description [...]