Question

The division which is under Subkingdom cryptogams includes plants having special conducting tissues

Answer 1

Answer:

Cryptograms are the plants with hidden reproductive organs. The reproductive organs of these plants are very inconspicuous (not clearly visible).

Thallophyta, Bryophyta and pteridophyta are the division of the plant kingdom that are cryptogams.

Answer 2

Complete Question:

Name the division which is under Subkingdom cryptogams includes plants having special conducting tissues.

Answer:

"Pteridophyta" under Subkingdom cryptogams includes plants having special conducting tissues.    

Explanation:

• The plant kingdom is divided into 2 sub-kingdoms i.e. Cryptogams and Phanerogams which in turn sub-divided into divisions, classes, orders and families.  

• The subkingdom Cryptogams is a sub-group of plants which never bear flowers and seeds (flowerless-seedless plants).

• Reproduction in these plants takes place by spores.
• This subkingdom includes 3 divisions namely,

1. Thallophyta-

• The simplest and most primitive plants (Algae & Fungi).
• The body is thallus and absence of vascular tissues.

2. Bryophyta-

• In this group, the plant body is more advanced than Thallophyta, some bryophytes have a thalloid plant body (Liverworts and Hornworts) whereas in Mosses the plant body is differentiated into stem like and leaf-like structures and rhizoids.

• Roots are absent. The sex organs are multicelled with a sterile jacket of cells.

• They are the most primitive land plants and are called "amphibians of the plant world."

• Vascular tissue is absent.

• An embryo is always present.

3. Pteridophyta-

• These plants have well-differentiated plant bodies, with roots (some exceptions), stems and leaves.

• They possess vascular tissue and therefore, are called vascular cryptogams, jacketed sex organs are multicellular with sterile sheaths. A distinct embryo is always present.

• Vasculature or the presence of vascular tissues for conduction of water and minerals and food substances in the form of conducting elements Xylem and Phloem respectively evolved in Pteridophytes.

• The plants belonging to this group do not produce seeds, reproduction is by spores and the formation of inconspicuous reproductive structures, hence called cryptogams.

Thus, the division having special conducting tissues under Subkingdom cryptogams is 'Pteridophyta'.

#SPJ2