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Answer:
The seedless vascular plants can be divided into three groups: Lycophyta (lycophytes), Sphenophyta (horsetails), and Pterophyta (ferns). Lycophytes appeared during the Devonian period but split into two lines during the Carboniferous period.
The main distinction between bryophytes and seedless vascular plants (pteridophytes) is that the former are non-vascular plants without seeds, whilst the latter are vascular plants without seeds.
Difference between bryophytes and pteridophytes.
- Small plants, bryophytes thrive in moist, shaded environments. They come from both terrestrial and marine settings. True vascular tissues that carry water and nutrients are absent in bryophytes. Bryophytes are therefore non-vascular plants.
- Vascular plants in the Pteridophyta, lack seeds, fruits, and flowers. They are often referred to as vascular seedless plants. Two significant groups of vascular plants without seeds are ferns and horsetails.
- Bryophytes and vascular plants without seeds are examples of primitive plants that reproduce through spores.
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