Question

What are the major divisions in plantae? Explain them.

Answer 1

The kingdom Plantae is divided into five main divisions. The major divisions of Plantae are Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms.

These divisions are based on the following criteria:

• Differentiated/Undifferentiated plant body

• Presence/absence of vascular tissues

• With/ without seeds

• Naked seeds/seeds inside fruits

1. Thallophyta: Simple body design; with no differentiation into root, stem and leaves.

2. Bryophyta: Body is differentiated into stem and leaf-like structures. Vascular system is absent.

3. Pteridophyta: Body is differentiated into root, stem and leaves. Vascular system is present. Reproductive organs are inconspicuous. Seeds are not produced.

4. Gymnosperms: Seeds are naked.

5. Angiosperms: Seeds are covered.