112 a BOTANICAL GAZETTE 
cell; ¢, developing zoospore with projecting neck penetrating: 
Enteromorpha cells. x 830 
Figs, 6, 7. Surface views eal first two stages in the formation of 
X 830. 
Fig. 8. Germinating zoospores in cultures not in contact with ho 
FIGs. 9, 10. Sporangia of large and small zoospores respective! 
F1G. 11. - Sporangium of large zoospores showing method of 
X 830. 
Figs. 12, 13. Large and small zoospores, X 830. 
Fig. 14. Resting spore. 
