science

Evolution of Angiosperm

Evolution of Angiosperm

  The angiosperms are thought to represent the climax of an extensive evolution and it would appear that the evolution of angiosperm has been still a continuous process.  principal evolutionary tendencies of the flowers   The principal evolutionary tendencies of the flowers: Elongated floral axis to shortened floral axis.  Spiral arrangements of floral parts to the

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primary tissues

What are Primary Tissues? Various sections of primary tissues

The higher vascular plants possess a large variation in the arrangements and structure of the primary tissues in their roots, stems and leaves.  Primary tissues in the dicotyledonous stem Anatomically, the stem possesses a dermal tissue system from where the epidermis, vascular tissue system develops. Next vascular bundles and the ground tissue system originate from

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Herbarium

What is a Herbarium? preparation, importance, functions and botanical gardens

       A herbarium is a place of the depository of plant specimens in dry conditions. According to H. M. Lawrence (1967), a herbarium is a collection of plant specimens after dried and pressed, these plant specimens are arranged in the sequence of an accepted classification, and are also available for reference or other

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What is Plants Nutrition?

What is Plants Nutrition? Things you need to know 

The study about chemical, organic or inorganic elements and compounds present in the soil but necessary for metabolism, growth and proper development of the plant body, is called Plants Nutrition. Both plants and animals require minerals for their development. In its absence, the plants are unable to complete their normal life cycle.  Criteria of Essentiality

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what is plant tissue?

What is plant tissue? Definition and various types of plant tissue

     All the unicellular organisms complete their biological and physiological work through their only one cell. But the multicellular organism originates from the zygote and forms multiple cells through the constant division of the zygote. Thus a group of cells consist of different size and shapes that are functioned togetherly as a unit, they are called

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Development of botanical code

Development of botanical code, the type method and Author citation 

Development of botanical code For several centuries the names of plants appeared as polynomials – which may be difficult to remember. Casper Bauhin at first in 1653 introduced Binomial Nomenclature, in which the scientific name of species consists of two parts, firstly the generic epithet and secondly the specific epithet.       Ex – Scientific name of

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