OF SOUTH AUSTRALIA. 
145 
of ramification and in the breadth of the frond, often proliferous. Cysto- 
carps are formed about the middle of the pinnule. The tetrasporangia are 
formed among the cortical filaments of dilated pinnules. Colour purplish- 
red. Surface glossy. 
Round the coast from Western Australia to New South Wales. Abundant 
at Lord Howe Island. South Australia (Encounter Bay, Investigator 
Strait, Eastern Bays). 
