A plant kingdom is further classified into subgroups. Classification is based on the following criteria: 1. Plant body: Presence or absence of a well-differentiated plant body. E.g. Root, … See more

Thallophytes lack a well-differentiated body structure and the plant body is thallus like. … See more

Bryophytes do not have vascular tissues. The plant body has root-like, stem-like and leaf-like structures. Bryophytes are terrestrial plants but are known as “amphibian… See more

Pteridophytes have a well-differentiated plant body into root, stem and leaves. They have a vascular system for the conduction of water and other substances. Some of the common ex… See more

Gymnosperms have a well-differentiated plant body and vascular tissues. They bear naked seeds, i.e. seeds are not enclosed within a fruit. Some of the common examples o… See more