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 […]
Thorne’s Principles (1958) of Plant Classification
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Contribution of Various Botanists towards Plant Classification
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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 […]
History of Plant Classification in India: 5 Periods
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The following points highlight the five periods in the history of plant classification in India. The periods are: 1. Rig Veda Period 2. The Greek Period 3. The Roman Period 4. The Dark Age, Herbals and the Transition Period 5. Modern Period. Period # 1. Rig Veda Period: According to Majumdar history of botany and […]
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