34 A Canadian Arctic Expedition, 1913-1918 



PHAEOPHYCEAE. 



Synura Ehrenb. 

 Synura Uvella Ehrenb. 



This was the only representative of the brown algae and occurred in small 

 quantity at Cape Bathurst, July, 1916. 



RHODOPHYCEAE. 



HELMINTHOCLADIACEAE. 



Batrachospermum Roth. 



Batrachospermum vagum (Roth) Ag. 



This species is well known from the fresh waters of nearly all temperate 

 and tropical countries, and a form has been recorded previously from southern 

 Alaska. It was secured by the expedition only from a tundra pond at Teller 

 along with Hyalotheca mucosa and other algae. Cystocarps absent. It is one 

 of the earliest known freshwater algae of Canada and was recorded by Kemp 

 in 1858, Paris, Canada West (Ontario). 



