Contents: Preface, 1. Isoetes in Rajasthan- A study of spores- D.R. Bhohra, B.D. Sharma and R. Singh, 2. Contributions to the spore morphology of certain polypodiaceous ferns from India- S.S. Bir and Chander K. Satija, 3. Contributions of palynology of angiosperm systematics- V.V. Sivarajan, 4. Studies in the loganiaceae: Pollen grains- A.M. Bendre, 5. Influence of Ethyl methanesulfonate and gamma rays on pollen in turneraa ulmifolia linn var. angustifolia willd- J.L. Tarar and V.R. Dnyansagar, 6. Contributions to the palynomorphology and palynotaxonomy of lauraceae from India- M.C. Suryanarayana and G.B. Deodikar, 7. Effect of different ammonium salts on pollen germination and tube growth in crescentia cujete Linn- S.A. Rahman and G.V. Patil, 8. GA induced pollen germination and tube elongation in abelmoschus esculentus- A.C. Shukla and S.C. Sharma, 9. Melittopalynological studies of sagarmal area (Kolhapur, Maharashtra, India) during monsoon- P.D. Chaubal, 10. Observation on the pollination of Kigelia pinnata D.C. by Bes- E.U.B. reddi, M.S. Reddi and C.S. Reddi, 11. Floral biology and pollination ecology of calendula officinalis L. and Gaillardia pulchelia var. picta foug. (compositae)- G.V. Patil, 12. A study of atmospheric pollen grains of Gauhati- K.N. Bora and H.K. Baruah, 13. Air-spora of Agriculture College field, Nagpur- T.K. Trivedi, S.K. Munshi and S.A. Paradkar, 14. Aero allergenic pollen: at aurangabad- S.T. Tilak and D.B. Vishwe, 15. Pollination calendar of potentially allergenic pollen producing plants of Vijaya wada: Andhra Pradesh- N. Appanna, 16. Air-spora of Bangalore city market and its relation to the occurrence of market diseases- S.B. Sullia and K.R. Khan, 17. Floral calendar of some potentially allergenic plants of Kurukshetra- L.C. Lamba and Parmod Madan, 18. Algal aerospora of Nagpur- Kusum Marathe and K.V.S. Reddy, 19. Aerobiological studies of Bangalore City Part II: A preliminary report- Shripad N. Agashe and Prathibha Vinay, 20. Aerobiological studies at modinagar (U.P.)I. Pollen grains and miscellaneous elements- R.D. Gaur and H.S. Bhati, 21. Palynology of Kanpur trees with special reference to their alergenic significance- A.C. Shukla and S.P. Misra, 22. Pollen productivity and pollen incidence in some potentially allergenic plants of vishakhapatnam- A. Janaki Bai and C. Subba Reddi, 23. Fossil microflora of a new locality from nanded district, maharashtra- S.G. Barlinge and S.A. Paradkar, 24. Addition to the microflora of deccan inter-trappean beds of mahgaon-Kalan- S.A. Paradkar and S.G. Barlinge, 25. Schizaeaceous spores in Situ from the jurassic rock of Rajmahal hills, India- B.D. Sharma and D.R. Bohra, 26. A critical miofloral study of umrer coalfield Nagpur, District, Maharashtra State- D. Sundaram and A. Nandi, Index.