Contents: Preface to fourth edition. Preface to third edition. Preface to second edition. Preface to first edition. 1. Introduction. 2. History of plant classification. 3. Systems of classification. 4. APG IV classification. 5. Origin of angiosperms. 6. Plant nomenclature. 7. Plant identification. 8. Field and herbarium methods. 9. Botanical gardens. 10. Modern methods in plant taxonomy. 11. Molecular plant taxonomy. 12. Computer applications in plant taxonomy. 13. Biosystematics. 14. Botanical survey of India. 15. Selected families of angiosperms. 16. Economic botany. 17. Botanical explorations in India and taxonomists of India. 18. Index. The Textbook Taxonomy of Angiosperms has been thoroughly revised in this fourth edition. All the earlier chapters have been revised and brought up-to-date. The chapter on Plant nomenclature has been updated as per the International Code of Nomenclature for algae, fungi and plants. A chapter on recent APG IV Classification has been added. Recent examples on modern methods in plant taxonomy have been given. Computer applications in Plant taxonomy, Molecular plant Taxonomy and DNA Bar coding have been added. Instead of orders account on families has been given along with illustrations which will be useful to the students for the competitive exams.