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Which of the following is/are Pteridophyta?
Lichens
Fern
Hornworts
Mosses
Fern
Pteridophyta are the first vascular land plants to possess true roots, stems, and leaves. Ferns are the most common members of this group, characterized by their reproduction via spores rather than seeds.
Pteridophyta are the first vascular land plants to possess true roots, stems, and leaves. Ferns are the most common members of this group, characterized by their reproduction via spores rather than seeds.
Think of ferns as the 'bridge' between primitive, small plants (like mosses) and advanced, seed-bearing plants (like trees); they have the 'plumbing system' (vascular tissue) but still rely on moisture to 'ship' their reproductive spores.
Pteridophytes = 'P' for 'Plumbing' (vascular tissue) and 'P' for 'Pteridophyte' (ferns/horsetails).
Life┬аCycle=Sporophyte┬а(2n)тЖТSporeтЖТGametophyte┬а(n)тЖТGameteтЖТZygote┬а(2n)
Pteridophytes exhibit a distinct alternation of generations where the sporophyte (diploid phase, 2n) is the dominant, independent, and photosynthetic phase. They possess xylem and phloem for the conduction of water and nutrients, which allows them to grow taller than bryophytes. Reproduction involves the production of spores within sporangia, typically found on the underside of leaves called sporophylls.
They are the first land plants to evolve vascular tissues.
The plant body is a differentiated sporophyte.
Reproduction occurs through spores produced in sori.
They require water for fertilization due to flagellated male gametes.
Vascular system allows efficient transport over distance
Spore-based reproduction allows for rapid colonization
Dependency on external water sources for fertilization
Absence of seeds makes the embryo vulnerable compared to Spermatophytes
Ornamental gardening (houseplants)
Soil erosion prevention in damp environments
Lichens are symbiotic organisms (fungi + algae), not plants.
Hornworts and Mosses belong to Bryophyta, which are non-vascular (lack xylem and phloem).
Pteridophytes are often called 'botanical snakes' because they were the first successful land-dwellers.
B is correct тАФ Ferns are the prototypical members of the division Pteridophyta, possessing vascular tissues and reproducing through spores.
Always remember that Bryophytes are non-vascular (no xylem/phloem) and Pteridophytes are the first vascular plants, but they still do not produce seeds.
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