Question

Which plant has Archegonia but lack seed formation?

Answer 1

Bryophytes and pteridophytes lack seed formation.

Explanation:

Bryophytes:

1. Bryophyta is a combination of the terms 'Bryon' (moss) and 'Python' (plants). Mosses, hornworts, and liverworts are examples of bryophytes.
2. These are small plants that flourish in shady, damp environments.
3. They have no vascular tissues. They reproduce using spores rather than flowers and seeds.

1. Despite the lack of extensive tissue organization in most bryophytes, they display a diverse range of shapes and ecology.
2. They are widespread worldwide and are tiny in comparison to most seed-bearing plants. Bryology is the study of bryophytes.
   Bryophytes are known as "amphibians of the plant kingdom" because, while being terrestrial plants, they require water to complete their life cycle during sexual reproduction.

Pteridophytes:

1. Pteridophytes were the first vascular plants to appear on land. Carolus Linnaeus categorized them as a crypto game.
2. Pteridophytes are intermediate between bryophytes and spermatophytes.
3. Because they do not produce flowers or seeds, they are sometimes known as Cryptogams.
4. There are around 12,000 Pteridophytes species on the planet. The term 'Pteridophytes' is derived from the Greek words pteron, which means "feather," and python, which means “plants.”
5. They like wet, shady environments. Some thrive on sandy soils as well.
6. The primary plant body contains distinct roots, stems, and leaves. It is known as a sporophyte.
7. The stem is a rhizome that grows underground.
8. Some Pteridophytes have little leaves known as microphylls (e.g., lycopodium), while others have huge leaves known as megaphylls (e.g Pteris).