00323nam a2200109Ia 4500008004100000082002600041100001900067245005400086260004800140300001000188650001500198140113s9999    xx            000 0 und d  a581.33'4+582 / 589 J2  a" Erdtman, G."  aPollen morphology and plant taxonomy: Angiosperms  b"Waltham : The chronica botanica Co., 1952"  a539p.  aPlaynology