Synopsis Andhra Pradesh is one of the 25 states of India. The state lies between 12o37' and 19o54' Northern latitudes, and 76o46' and 84o46' Eastern longitudes and covers an area of 2,75,068 sq. km. The state is endowed with a variety of vegetation types ranging from semi-evergreen forests to dry evergreen scrub and littoral mangroves to arid sand dunes. A total of 531 tree taxa of Angiosperms under 274 genera and 76 families have been enumerated in the book. The text includes introduction, topography and general features, forests and vegetation, key to families, systematic enumeration, references and index to families, genera, species and vernacular names. Under systematic enumeration the families are arranged according to Bentham and Hooker's system of classification with slight modifications to accommodate recent changes. All the genera in the family and all the species in the genera are arranged alphabetically. All the keys provided are of dichotomous indented type. Different keys, based on vegetation, flowering and fruiting characters have been prepared for all the species of concerned genera to facilitate easy identification of tree taxa. The enumeration of species includes the complete citation according to ICBN, basionym, synonym followed by brief description, ecological data, phenology, vernacular names. English names (for some plants), economic and medicinal uses, specimens examined and distribution in Andhra Pradesh, India and World.