Question
Identify the plant bodies, which are commonly named as “cryptogamae”. State and explain two characteristics which are exhibited by each category of these plant bodies.
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Answer
Plant bodies which are commonly named as “cryptogamae” are:
- Thallophyta.
- Bryophyta.
- Pteridophyta.
- Thallophyta:
- Plants have an irregular shaped undifferentiated body called thallus.
- Vascular tissues are absent.
- Bryophyta:
- The plant body is commonly differentiated to form stem and leaf-like structures.
- There is no specialised tissue for the conduction of water and other substances from one part of the plant body to another.
- Pteridophyta:
- The plant body is differentiated into roots, stem and leaves.
- These plants have specialised tissue for the conduction of water and other substances from one part of the plant body to another.
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