Plate XLTI; Figures 271 to .277 ; Magnified 500 



Diameters. 



Fig. 271. Spharozosma pulcrum Bailey . . page 65 

 Fig. 2-J2. serratum (Bailey) Wall. 



</. Side view : b, end view : c, view 

 from above .... 



Fig. 273. Hyalotheca dissiliens (Sm.) Breb. 

 Fig. 274. Cladophora glomerata ( L. ) Kiitz. 54 



Fig. 2/$. Desmidium Sivartzii Ag. a, Side 

 view ; />, end view ; c, side view- 

 less magnified .... 65 

 Fig. 2j(). Desmidium cylindricum Grev. Side 

 view ...... 



Fig. 2ytm. Desmidium cyliudricum Grev. End 



.. it 

 view ...... 



Fig. 2~~. Sphitrososma spiuosum (Del]).) Wolle 



