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Botanical Classification of Plants

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The system of classification of plants has existed from centuries. It began to be formally known during the era of Carlous Linnaeous when he first published the book about classification of plants and a few years later published book of classification of animals. The classification system proposed by Linnaeous is knows today as conventional system. The organisms in the plant kingdom were classified into divisions or phyla according to structural features. I) THALLOPHYTA These are the simplest organisms which had cell walls and lack structures like roots, stems and leaves. They include bacteria, fungi and algae . The most renowned among these are mushrooms and nitrogen fixing bacteria. And many are notorious plant pathogens causing serious diseases of plants like rusts and smuts . II) BRYOPHYTA These are mosses, liverworts and hornworts which lack true roots and flowers. These species are ecologically very important in the tropics and forest ecosystems. III) PTERIDOPHYTA These are...
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