The diversity of colour, form and size that exists among bulbous ornamentals and aquatic plants are usually much appreciated, their subtle and insidious charm add to the beauty of the landscape. International trade on these crops are rising rapidly and world-wide queries for new material are increasing. Apart from the ornamental value, many of these groups of plants are consumed as food and medicine, they also provide fibre and other useful material to mankind. In view of the importance of these crops, critical review have been made in this publication on the crop like tulip, lilium, glodious, tuberose, alstromeria, cyclamen, tuberous begonia, dahlia, hemerocallis, hymenocallis, canna, hippeastrum, anemone, anigozanthos, eucharis, fressia, gloxinia, iris, liatris, nelumbo, nymphaea, acorus, altrovanda, aponogeton, butomus, calla, callitricha, caltha, cyperus, decodon, eichhornia, gldrocleis, juncos, saururus, saussrea, thalia, trillium, trollius, utricularia and Victoria. The book will be most beneficial to scientists, teachers, students, farmers, amateurs, commercial flower growers and all those interested in these alluring flower crops.