Question

State six characteristics features of pteridophyt

Answer 1

Ø They were originated in the Silurian period and flourished in the Devonian period.

Ø They are known as ‘Vascular Cryptogams’ – cryptogams with vascular system.

Ø They show heteromorphic alternation of generation with prominent Sporophytic and Gametophytic phases.

Ø The main plant body of Pteridophyte is the sporophytic plant (diploid).

Ø The gametophytic and sporophytic generations are two independent plants (not physically connected).

Habit and Habitat of Pteridophytes

Ø Pteridophytes show much variation in form, size, and habitat.

Ø Most of the present day Pteridophytes are annual, terrestrial and herbaceous plants. (Example: Psilotum, Selaginella Lycopodium).

Answer 2

A  pteridophyte is a vascular plant that disperses spores.
Because pteridophytes produce neither flowers nor seeds, they are also referred to as "cryptogams".
The pteridophytes include the ferns, horsetails, and the lycophytes.




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