The major division of the kingdom Plantae are:
(i) Thallophyta
(ii) Bryophyta ltbgt (iii) Pteridophyta
(iv) Gymnosperms
(v) Angiosperms
The first level of classification of plants is based on the presence and absece of well-differentiated distinct compnents in hte body. Algae are separated from the rest in having simple and less differentiated thalloid plnat body. The next level of classification is based on the pressenc and absence of vasular tissues (i.e., xylem and phloem). This charater separaters bryophyta from the rest. Further classification is based on the ability to bear seeds. Pteridophyta do not bear seeds. Finaly the groups are made on the basic of seeds naked or enclosed within fruits. The Gymnosperms have naked seeds whereas Angiosperms bear seeds enclosed within the fruits
