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  • Pteridophytes are called vascular cryptogams, because they are non seeded - plants containing  Option: 1 xylem and phloem  </

Pteridophytes are called vascular cryptogams, because they are non seeded - plants containing
 

Option: 1

xylem and phloem
 


Option: 2

only xylem
 


Option: 3

only phloem
 


Option: 4

neither xylem nor phloem
 


Answers (1)

best_answer

 

 

Pteridophyta -

  • Pteridophytes are first vascular and successful terrestrial plants with true roots, stem and leaves but no flowers, fruits and seeds.
  • These plants are mostly found in cool, damp, shady places. Some may also be found in sandy-soil conditions. 
  • The dominant stage in the life cycle of pteridophytes is sporophyte. It possesses roots, stem and leaves.
  • The sporophyte of pteridophytes possesses vascular tissue i.e. xylem and phloem.
  • In xylem, true vessels are absent but tracheids are found.
  • In phloem, companion cells and sieve tubes are absent, however, sieve cells are present.
  • The leaves in pteridophytes can be of two types i.e. they can be small, microphyllous without leaf gaps as in Selaginella and Lycopodium or they can be large macrophyllus as in Ferns like Dryopteris.

  

 

Pteridophytes bear xylem and phloem.

Posted by

Deependra Verma

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