This is a comprehensive taxonomic account of the angiosperm flora of Tirunelveli Hills, which are the Eastern slopes of Agathimalai, in the southernmost part of the Western Ghats, India. It is the result of four years of fieldwork, during which about 2000 species of angiosperms were collected. All species were identified by meticulous cross-checking with specimens at herbaria, with help from taxonomic experts, and checking relevant previous literature, particularly the work of G.S. Gamble.
The flora incorporates details of geology, vegetational types, distribution, climatology, taxonomic accounts, endangered, vulnerable, and endemic species, and species of medicinal and economic importance. Line drawings for all 2000 species have been included. Much attention is paid to the taxonomic accuracy of all drawings which will enable all research scholars and scientists to identify their collection with ease. Volume 1, Polypetalae covers 667 species in 275 genera and 77 families and is divided in two parts, one book giving the taxonomical accounts, the other the line drawings.