write information on thallophyta bryophyta and pteridophyta in 20 pages
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Bryophyte
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Water is necessary for the act of fertilization, i.e., biflagellated antherozoids swim across the film of water.
True roots are absent. Instead unicellular (Riccia, Marchantia) or multicellular (Funaria) rhizoids are present.
Vascular tissues are absent.
Pteridophytes
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Most pteridophytes are terrestrial and grow in moist and shady places while some flourish well in open, dry places especially in xeric conditions.
The sporophytic plant body remains differentiated into true roots, stem and leaves.
The branching of the stem may be of monopodial or dichotomous type.
Thallophyta
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They are usually found in moist or wet places.
This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals.
They are autotrophic in nature.
Most members in this group manufacture their own food.
Reserve food is generally starch.
____
Bryophyte
____
Water is necessary for the act of fertilization, i.e., biflagellated antherozoids swim across the film of water.
True roots are absent. Instead unicellular (Riccia, Marchantia) or multicellular (Funaria) rhizoids are present.
Vascular tissues are absent.
Pteridophytes
______
Most pteridophytes are terrestrial and grow in moist and shady places while some flourish well in open, dry places especially in xeric conditions.
The sporophytic plant body remains differentiated into true roots, stem and leaves.
The branching of the stem may be of monopodial or dichotomous type.
Thallophyta
_______
They are usually found in moist or wet places.
This is due to the absence of “true roots” and vascular tissue that is needed to transport water and minerals.
They are autotrophic in nature.
Most members in this group manufacture their own food.
Reserve food is generally starch.
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