00281nam a22001097a 4500003000400000008004100004082001700045100001800062245004000080260004400120300000700164OSt240110b        |||||||| |||| 00| 0 eng d  a561.13bM52E  aMehra, P. N.   aEvolution of spore through the ages  aLucknowbPalynological society of India  a45