BRYOPHYTES

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  • Опубликовано: 6 апр 2015
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    BRYOPHYTES:
    Bryophytes include the various mosses and liverworts that are found growing in moist shaded areas in the hills.
    Bryophytes are small group of primitive plants which are commonly called “amphibians” of the plant kingdom. The word bryophyte (bryon=moss, phyton=plant) was coined by Brown the study of bryophytes is called Bryology. They are characterized by following features.
    1. Bryophytes chiefly occur in damp, shady and humid localities.
    2. The plant body is a gametophyte (because it produces gametes). It is thallus like in primitive form (Riccia). In higher bryophytes the plant body is differentiated into rhizoids, stem and leaves.
    The stem is prostrate or erect, and attached to the substratum by unicellular or multicellular rhizoids. They are organs of absorption and fixation.
    3. Nutritionally, the plant body is independent, and is the conspicuous phase of the life cycle.

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