PLATE X. 



Nitella spanioclema G-roves & Bullock- Webster. 



FIG. 



1-8. Fruiting portions of the plant, showing characteristic 

 forms of branches and branchlets, and disposition of 

 antheridia and oogonia. 

 Figs. 1-5. x c. 10. Figs. 6-8. x c. 20. 



