Bentham and Hooker’s System of Classification

Bentham and Hooker’s System of Classification

George Bentham and Sir Joseph Dalton Hooker developed a system of classification. They published thier work in Latin, which was entitled “Genera Plantarum”.This system of classification is a natural non-phylogenetic system which is a slight modification of de-Condolle’s system of classification.In this system, the flowering plants are divided on the basis of simple superficial characters neglectinng some floral characters.In this system the position of Gymnosperms is anamalous i.e. in between dicotyledons and monocotyledons.Arboreous and herbaceous habits are to be neglected in this system.The bentham and Hooker’s sysem of classification is as follows: Continue reading…

 

Binomial Nomenclature

Binomial Nomenclature

The process of assigning of scientific names to plants is known as nomenclature. Name is the most important way for identification of plants. Our choice of names for individual imbibes a great influence on language, religion, culture and tradition. Thus, there is a need of an internationally accepted terminology and names in Botanic study so that our work can be meaningful and comprehensive one to all concerned. Continue reading…

 

Detailed Article on Types, Structure and Shapes of Bacteria

Bacteria

Word bacteria (singular bacterium) means small rod because the first bacteria were rod shaped. Bacteria are the smallest unicellular prokaryotic organisms (Organisms that lack true nucleus and membrane bounded organelles) that cannot be seen with naked eye but can be seen only with the help of microscope. Bacteria were discovered by a Dutch scientist Leeuwenhoek in 1676.

 

Origin of Life on Earth:

Life on earth evolves billions of years ago. According to some scientists 4 billion of years ago life on earth evolves. The first living organisms evolved on earth were single celled prokaryotic organisms. Continue reading…