Contents: Preface,NBRI through the years,Algae and the sewage problem,Mushrooms,Physiopathological investigations of virus infected ornamentals citrus and papaya,The lichen flora of India with special reference to Andaman Island,Comparative morphology of homosporous ferns,An evaluation of the studies in fern spores,Some aspects of tree genetics research in India with particular reference to conifers,Taxonomic significance of epidermal characters in acanthaceae,Studies in pollen biology,Embryology and seed structure of some economic plants,Reflections on plant exploration,Alien flora of India,Survey and collection of medicinal plants,Pharmacognostical studies on some indigenous drugs,Plant tissue culture-in retrospect,Tissue culture of economic plant,Index.
