320 GUERNSEY. 
Lithophyllum expansum, Phil. 
Fermain. Bordeaux. Lancresse Bay. Vazon. An addition to 
the British flora. 
Lithothamnion polymorphum, Aresch. (JZelobesia.) 
Common. 
Lithothamnion intermedium, Kjellm. 
Bordeaux. Petit Bot. Vazon Bay. 
(Lithothamnion incrustans, Fosl., occurs in Alderney.) 
Corallina officinalis, Linn. 
Common. 
Corallina squamata, Ellis. 
Common. 
(Corallina mediterranea, Aresch., occurs in Alderney.) 
Corallina rubens, Ellis. (/azza.) 
Rather common 
Corallina corniculata, Ellis. (/avza.) 
Cobo. Petit Bot. Rocquaine Bay. ; 
