472 BULLETIN OF THE BUREAU OF FISHERIES. 
Fig. 25.—Acrochetium parvulum, X 189. Fig. 28.—Acrochetium hoytii, showing monosporangia, X 
Fig. 26.—Acrochetium dufourii, showing monosporangia and 189. 
spore, drawn from cotype, X 189. Fig. 29.—Acrochatium virgatulum, X 98. 
Fig. 27.—Acrochetium hoylii, drawn from cotype, X 98. Fig. 30.—Acrochetium virgatulum, showing monosporangia, 
X 257. 
