POLLEN AND SPORE 



MORPHOLOGY/ 

 PLANT TAXONOMY 



GYMNOSPERMAE, PTERIDOPHYTA, BRYOPHYTA 



(ILLUSTRATIONS) 



(An Introduction to Palynology. II) 



BY 



G. ERDTMAN 



With frontispiece, 5 plates and 265 illustrations 



MARINE 



BIOLOGICAL 



LABORATORY 



LIBRARY 



WOODS HOLE, MASS. 

 W. H. 0. I. 



ALMQVIST & WIKSELL/ STOCKHOLM 

 THE RONALD PRESS COMPANY/NEW YORK 



