T.J. Pandian, recipient of the S.S. Bhatnagar Prize, the highest Indian award for scientists, one of the ten National Professorships, has served as editor/member of editorial boards of many international journals. His books on Animal Energetics identify him as a prolific but precise writer. His five volumes on Sexuality, Sex Determination and Differentiation in Fishes, published by CRC Press, are ranked with five stars. He has authored a multi-volume series on Reproduction and Development of Aquatic Invertebrates, of which the volumes on Crustacea, Mollusca, Echinodermata and Prochordata, Annelida, Platyhelminthes and Minor Phyla have been published. The CRC Press has recently published his new book series on Evolution and Speciation in Animals. The second volume on Evolution and Speciation in Plants is presented here.