i6o Roosevelt Wild Life Bulletin 



Plate 7. Plankton Algae of Palisades Park 



(All figures x 460) page 



Fig. I Gloeocyslis gigas 141 



Fig. 2 Sphaerocystis Schroeteri 141 



Figs. 3-5 Gloeocystopsis limneticus 141 



Fig. 6 Asterococcus limneticus 141 



Fig. 7 Dictyosphj,erium pulchellum 141 



Fig. Dimorphococcus lunatus 141 



Fig. 9 Westella botryoides 141 



