218 WISCONSIN PHYTOPLANKTON 



PLATE 87. 

 Figs. 1-2, 4-11, x600; Fig. 3, x 300. 



Page 



Figs. 1-2. Spondylosium planum (WoUe) W. & G. S. West 140 



Figs. 3-4. Spondylosium pulchrum (Bail.) Arch 140 



Figs. 5-7. Spondylosium moniliforme Lund 141 



Figs. 8-9. Eyalotheca dissiliens (Smith) De Breb 142 



Fig. 10. Eyalotheca mucosa (Dillw.) Ehr 142 



Fig. 11. Gymnozyga moniliformis Ehr 146 



