Andhra Pradesh, one of the 28 states of India, lies between 12?37’ and 19?54’ N latitudes and 76? 46’ and 84?46’ E longitudes. The state is endowed with a variety of vagetation ranging from semi evergreen forests to dry evrgreen scrub and littoral mangroves to arid sand dunes. A total of 86 species of Pteridophytes under 48 genera and 28 families have been enumerated in the book. Topography and general features, past and present work, forests and ...
