It 

 a 



Plate XXXIX; Figures 254 to 260; Magnified iooo 



Diameters. 



Fig. 254. Cosmarium tetrophthalmum (Kiitz.) 



Breb page 64 



Fig. 255. Cosmarium galeritum Nord. . " " 



Fig. 256. Cucurbit a Breb. . 



Fig. 25-. pseudobroomei Wolle . 



Fig. 257a. 



End view " 



Fig. 258. Cosmarium Broomci Thwaites. End 



view " 



Fig. 259. Arthrodcsmus convergens (Ehrb.) 



Ralfs "63 



Fig. 260. Arthrodcsmus octocornis Ehrb. . " " 



