In this article we will discuss about the similarities and difference between pteridophytes and bryophytes.
Similarities between Pteridophytes and Bryophytes:
(i) Both the groups have members with terrestrial mode of life.
(ii) Like Bryophytes some Pteridophytes have rhizoids (e.g., Rhynia, Psilotum).
(iii) Formation of spores is same in both the groups. Like Bryophytes many Pteridophytes are homosporous e.g., Equisetum, Rhynia, Lycopodium etc.
(iv) Sexual reproduction is oogamous. Asexual reproduction (formation of spores by mitosis) is absent.
(v) Male and female sex organs are antheridia and archegonia.
(vi) Antherozoid (male gamete) is flagellated and motile and the egg (female gamete) is non-motile.
(vii) Water is essential for fertilization. Therefore like Bryophytes, Pteridophytes are also known as “amphibians of plant kingdom.”
(viii) Members of both the groups show heteromorphic alternation of generation.
Difference between Pteridophytes and Bryophytes:
Pteridophytes:
1. Plant Body:
Sporophytic and can be differentiated into root, stem and leaves, large in size.
2. Dominant Phase:
Sporophytic.
3. Foot:
Present.
4. Vascular Tissue:
Present.
5. Spores:
Homosporous and heterosporous.
6. Elaters:
Absent.
7. Sporophyte:
Dependent on gametophyte in early stages but later it becomes fully independent, capable of independent growth.
Bryophytes:
1. Plant Body:
Gametophytic, thalloid or foliose, smaller in size.
2. Dominant Phase:
Gametophytic.
3. Foot:
Absent.
4. Vascular Tissue:
Absent.
5. Spores:
Homosporous.
6. Elaters:
Present.
7. Sporophyte:
Completely dependent on gametophyte, not capable of independent growth.