The present enlarged edition has four parts viz Part-I: Spices, Part-II: Plantation Crops, Part-III: Medicinal Plants and Part-IV: Aromatic Plants. It caters to the need of the students of undergraduate programmes in Horticulture/ Agriculture/Forestry being offered in various State Agricultural Universities and also to the students of Botany courses of the conventional Universities. It will also serve as a handbook for extension personnel and progressive growers of these crops.