Question

Differentiate between Bryophyta and Pteridophyta

5 points each

Answer 1

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☣ Differentiation ☣

➡ BRYOPHYTA

▶Plant body is gamwtophytic.

▶Plant body is either thallose and/or folloise. However, real stem and leaves are always absent.

▶Fixation of plant body is carried out by rhizoids.

▶Sporophyte is parasitic over the gamwtophytic plant body throughout its life.

▶Bryophytes are non-vascular in nature.



➡ PTERIDOPHYTA

▶Plant body is sporophytic.

▶Real stem and leaves are present.

▶Fixation of plant body is carried out by roots.

▶The gametophyte is small and independent.

▶Pteridopytes are vascular plants.

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Answer 2

Bryophyta - Bryophyta (Gk. bryon = moss + phylon = plant) are the first and simplest land plants.

Examples -

Mosses - Funaria, Sphagnum
Liveworts - Riccia, Marchantia

Pteridophyta - Pteridophyta (Gk. pteris = fern + phylon = plant) are the first truly terrestrial, vascular cryptogams.

Examples -

Ferns - Azalla,Dryopteris

Club Mosses - Selaginella, Lycopodium

Differences between Bryophyta and Pteridophyta are given below --

BRYOPHYTA -

1. Plant body is not differentiated into true roots, stem and leaves.

2. Nonvascular plants (vascular tissue is not developed)

3. Fixation is by rhzoids.

4. Gametophyte main plant; Sporophyte occurs as parasite on gametophyte.

PTERIDOPHYTA --

1. Plant body is differentiated into true roots, stem and leaves.

2. Vascular plants (vascular tissue, i.e., xylem and phloem well-developed)

3. Fixation is by roots.

4. Gametophyte is small and main plant is Sporophyte