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Maesilea crenata

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 Marsilea crenata is a species of fern found in Southeast Asia. It is an aquatic plant looking like a four leaf clover. Leaves floating in deep water or erect in shallow water or on land. Leaflets glaucous, sporocarp ellipsoid, on stalks attached to base of petioles.
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About kingdom Protista

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 KINGDOM PROTISTA

All single-celled eukaryotes are placed under Protista, but the boundaries

of this kingdom are not well defined. What may be ‘a photosynthetic

protistan’ to one biologist may be ‘a plant’ to another. In this book we

include Chrysophytes, Dinoflagellates, Euglenoids, Slime moulds and

Protozoans under Protista. Members of Protista are primarily aquatic.

This kingdom forms a link with the others dealing with plants, animals

and fungi. Being eukaryotes, the protistan cell body contains a well defined

nucleus and other membrane-bound organelles. Some have flagella or

cilia. Protists reproduce asexually and sexually by a process involving

cell fusion and zygote formation.

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