In this article we will discuss about Numerical Taxonomy:- 1. Meaning of Numerical Taxonomy 2. Principles of Numerical Taxonomy 3. Merits 4. Demerits 5. Applications. Contents: Meaning of Numerical Taxonomy Principles of Numerical Taxonomy Merits of Numerical Taxonomy Demerits of Numerical Taxonomy Applications of Numerical Taxonomy 1. Meaning of Numerical Taxonomy: Numerical taxonomy or taximetrics, nowadays frequently and perhaps more [...]
The following points highlight the seven hypotheses of origin of monocots. 1. According to Engler and his associates, Isoetales, Ophioglossales and a few other pteridophytes are ancestors to monocots. The herbaceous monocots have been considered to be more primitive than woody dicotyledons by them. However, this view is contradicted by the fact that, the woody habit is now generally accepted [...]
The following points highlight the three main lines of evolution in angiosperms. Angiosperm: Evolution # 1. The First Line: I. It consists of Rhoeadales, Sarraceniales, Parietales, Malvales, Geraniales, Sapindales, Rhamnales and some Tubiferales. In this case the hypogynous condition remained unchanged. II. Labiatae is the most advanced family of this line. It is characterized by fusion of sepals, petals and [...]