Pteridophyta, Gymnosperms and Angiosperms
Evolutionary Biology & Ecology > Kingdom Plantae
Angiosperms Angiosperms gives beauty to the nature Commonly known as flowering plants, angiosperms are seed plants, that produce the reproductive structures called flowers and fruits.

Pteridophyta (Seedless Vascular Plants – Ferns): The division Pteridophyta includes a group of primitive vascular plants, commonly called pteridophytes.

There are some 10,000 species of ferns or pteridophytes (pteris = fern; phyton = plant).

Gymnosperms (Nonflowering seed plants): The gymnosperms are seed producing land plants. However, the seeds are not enclosed in fruits. Most of them have now become extinct and only about 900 species are known to be surviving. The living gymnosperms are widely distributed in the cold climates where snow, rather than rain, is the source of water. Only one group called cycads thrive in warmer regions.

Angiosperms – The flowering seed Plants: Commonly known as flowering plants, angiosperms are seed plants, that produce the reproductive structures called flowers and fruits. Flowering seed plants are more prevalent than nonflowering seed plants. Today, angiosperms are the most diverse and widespread of all plants, with more than 250,000 species (about 90% of all plant species).

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