notes of thallophyta
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The thallophytes (Thallophyta or Thallobionta) are a polyphyletic group of non-mobile organismstraditionally described as "thalloid plants", "relatively simple plants" or "lower plants". These plants mainly grow in water. They were a defunct division of kingdom Plantae that included fungus, lichens and algae and occasionally bryophytes, bacteria and the Myxomycota. Thallophytes have a hidden reproductive system and hence they are also called Cryptogamae (together with ferns), as opposed to Phanerogamae. The thallophytes are defined as having undifferentiated bodies (thalli), as opposed to cormophytes (Cormophyta) with roots and stems. It mainly grows in fresh water and it has fibre like body.
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Thallophyta :-
They are thallus-likr and hence, they are known as thallophyta.
» These are eukaryotic, autotrophic plants with following feature :-
→ Photosynthetic pigment is present.
→ There is absence of true root, stem or leaves. That is, body is not divided into well differentiated parts
→ Vascular bundle is also absent. (Xylem and Phloem is absent)
→ They are unable to produce seeds, flowers or fruits.
→ They are also known as algae.
→ Reproduction can be by fragmentation, asexual or sexual.
Example :- Ulva, Ulothrix, spirogyra, cladophora, volvox etc.
They are thallus-likr and hence, they are known as thallophyta.
» These are eukaryotic, autotrophic plants with following feature :-
→ Photosynthetic pigment is present.
→ There is absence of true root, stem or leaves. That is, body is not divided into well differentiated parts
→ Vascular bundle is also absent. (Xylem and Phloem is absent)
→ They are unable to produce seeds, flowers or fruits.
→ They are also known as algae.
→ Reproduction can be by fragmentation, asexual or sexual.
Example :- Ulva, Ulothrix, spirogyra, cladophora, volvox etc.
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