472 



BULLETIN OF THE BUREAU OF FISHERIES. 



Fig. 25. Acroch&tium parvulum. X 189. 



Fig. 26. Acroch&lium dufourii. shoving monosporangia and 

 spore, drawn from cotype. X 189. 

 Fig. 27. Acrochatium hoytii, drawn from cotype, X 98. 



Fig. 28. Acroch&tium hoytii, showing monosporaagia. X 



Fig. 29. AcrocluetiuM uirgatulum, X 98. 



Fig. 30. Acrochtetium -virgatidum, showing monosporangia, 



