Question

write characteristic of plant belonging in the division in pteridophyta ?​

Answer 1

Explanation:

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1)All of these are land plants (terrestrial) with some aquatic forms .

2) They are very small.

3) The sporophyte and gametophyte have very different morphologies (heteromorphic generations) and the sporophyte is usually partly dependent on the gametophyte.

4)Photosynthetic, non-vascular plants Plant body is either :-Thalloid and attached to the substratum by hair-like structures called rhizoids (true roots are absent) oris differentiated into stem-like (caulalia) and leaf-like structures (phyllids), true stems and leaves lacking.

5)Cuticle and stomata are absent.

6)The bryophytes show alternation of generations - the haploid gametophyte (producing gametes for sexual reproduction) alternates with diploid sporophyte (producing spores for asexual reproduction).

Answer 2

Answer:

Before the flowering plants, the landscape was dominated with plants that looked like ferns for hundreds of millions of years. Today, their massive lineage have descendants that have almost the same characteristics as their ancient ancestors.

Unlike most other members of the Plant Kingdom, pteridophytes don’t reproduce through seeds, they reproduce through spores instead.

Pteridophyta Classification

Pteridophytes can be classified into:

Lycopodiopsida

Lycopodiidae (club mosses)

Selaginellidae (quillworts, spike mosses)

Polypodiopsida

Psilotidae: Ophioglossales (e.g. grape ferns) and Psilotales (whisk ferns).

Equisetidae (horsetails)

Polypodiidae (leptosporangiate ferns, the most species-rich group)

Marattiidae (marattioid ferns)