WISCONSIN PHYTOPLANKTON 219 



PLATE 34. 



Page 



Figs. 1-3. ElaJctothrix gelatinosa (Figs. 1-2, x 500; fig. 3, x 1000) 139 



Fig. 4. Kirchneriella lunaris (x 1000) 141 



Fig. 5. KircUneriella lunaris var. dianae (x 100 141 



