Plants are grouped on the basis of plant body components, presence of specialised tissues, ability to bear seeds, etc. Based on these factors, plants are classified as:
- They do not have well-differentiated body design.
- They are predominantly aquatic.
- The plants of this group are commonly known as “Algae”.
- Eg: Ulothrix, Chara
- The plant body is differentiated to form stem and leaf-like structures.
- Specialised tissue for conduction of water is absent.
- These plants are known as “Amphibians” of plant kingdom, because even though they live on land, they need water for reproduction.
- Eg: Moss, Marchantia
- Their body is differentiated into roots, stem and leaves.
- They have specialised tissues to conduct water and other substances from one plant part to another.
- Eg: Marsilea, Ferns
The thallophytes, bryophytes and pteridophytes are called “Cryptogamae” or “Those with hidden reproductive organs”, because their reproductive parts are…
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