BRITISH MARINE ALGiE. 



119 



Sporochnus pedunculatus. Summer. Mount Edge- 

 cumbe ; Torpoint ; Torquay. Frith of Forth. 



Spyridia filamentosa. Summer. Firestone Bay ; Ex- 

 mouth ; Holy Head. 



Striaria attenuata. Spring. Torpoint; Firestone Bay; 

 Torquay. 



Stenogramme interrupta. Autumn and winter. Mount 



Edgecumbe ; Torpoint ; Bovisand ; Minehead. 



Cork Harbour. 

 Stilophora Lyngbyaei. Summer. Mount Edgecumbe ; 



Torpoint. Scotland and Ireland. 

 Stilophora rhizodes. Summer. Mount Edgecumbe ; 



Beggar's Island ; Torquay ; Jersey. 



Taonia atomaria. Summer. Mount Edgecumbe ; 

 Whitsand Bay ; Torquay. Ballycotton. 



Ulva Lactuca. Autumn and summer. Whitsand Bay ; 

 Bovisand. 



Ulva latissima. From spring to winter. In the sea, 



on rocks or stones. Very common. 

 Ulva Linza. Summer. With the preceding. 



Vaucheria marina. Summer. Torbay ; Salcombe, 

 Appin. 



Vaucheria submarina. Summer. On the muddy sea- 

 shore, Weymouth, 



