liant grass-green ; afterwards it becomes pale, and before the plant parishes, 

 frequently a dirty-white or yellowish. 



This is one of the commonest species in Western AustraUa, 

 where it may be taken to represent the C. latevirens of European 

 seas. The filaments are however more robust, the joints pro- 

 portionally shorter, and the branching different. Its swollen, 

 blunt cells remind us of a Valonia ; but the resemblance is one 

 of analogy only. 



Fig. 1. Cladophora valonioides, — the natural size. 2. End of a branch 

 and ramuli. 3. Terminal cells: — the two latter figures variously j^ff^wi/^W. 



