380 THE ALG^E OF GUERNSEY. 



Griffithsia COrallina, C. Ag. Rather common. 



G. setaeea, C. Ag. Common. 



Halupus equisetifolius, Kutz. (Griffithsia). Cobo. Bordeaux. L'An- 



cresse Bay. Frequent on the south coast. 

 Bornetia secundiflora, Thur. (Griffithsia). Cobo. Moulin Huet. Roe- 



quaine. Bec-du-Nez. Fermain. 



Monospora pedieellata, Solier. (CalHthamnion). Frequent all round the 

 coast. 



Pleonosporium Borreri, Nag. (Callithamnion). Fermain. Bec-du-Nez. 



Petit Port. Petit Bot. 



RhodoehOPton Rothii, Nag. (Callithamnion). Common. 



R. floridulum, Nag. Petit Port. L'Ancresse Bay. 



Callithamnion Hookeri, 0. Ag. Belgrave Bay. Grandes Ilocques. Bor- 

 deaux. L'Ancresse Bay. 



C. tetragonum, C. Ag. Frequent in the south. 



C. tetPieum, C. Ag. Occasional all round the coast. 



C. COPymbOSUm, Lgng. Common. 



C byssoideum, Am. Moulin Huet. Cobo. Bordeaux. 



C. granulatum, C. Ag. (C. spongiosum). Fermain. Moulin Huet. Petit 

 Bot. Petit Port. 



Compsothamnion thuyoides, Schm. (Callithamnion). Fermain. 



Plumaria elegans, Bon. (Ptilota). Common on perpendicular rocks. 



Antithamnion plumula, Thw. (Callithamnion). Vazon, one specimen 

 washed up. 



Cpouania attenuata, J. Ag. Common. 



Ceramium tenuissimum, /. Ag. (C. nodosum). Rocquaine. Cobo. 

 C. Deslongehampsii, Chaw. Bordeaux. 

 C. StPietum, Heirv. Grandes Rocques, on Zostera. 

 C diaphanum, Roth. Cobo. Bordeaux. Grandes Rocques. 

 C. PUbPlim, C. Ag. Very common, f. prolifera (C. botryocarpum) . Fer- 

 main. Saints' Bay. Cobo. Bordeaux. 

 C. eehionotum, J. Ag. Common. 

 C aeanthonotum, Carm. Vazon. 

 C. Ciliatum, Duel. Rather common all round the coast. 

 MiCPOCladia gPandulosa, Grcv.- Moulin Huet. Bec-du-Nez. 



Gloiosiphonia eapillapis, Carm. Cobo. 



Halymenia ligulata, C. Ag. L'Ancresse Bay, washed up. 

 Gpateloupia filieina, C. Ag. Bordeaux. Petit Bot. f. intermedia. 



Moulin Huet. 

 Dumontia filifOPmis, Grev. Moulin Huet. Fermain. 

 Dudpesnaya eoeeinea, Bon. Rocquaine. 



Dilsea edulis, Stack. (Iridsea). Moulin Huet. Fermain. Bordeaux. 

 FtlPCellaPia fastigiata, Lam. Rather common. 

 Polyides POtunduS, Grev. Bec-du-Nez. Petit Bot. 

 PetPOCelis CPUenta, J. Ag. (Cruoriapellita). Fermain. 

 Peyssonelia Dubyi, Dene. Fermain. Bordeaux. Petit Bot. 

 HildenbPandtia pPOtotypUS, Nanl. (H. rubra). Common. 

 Schmitziella endophl03a, Bom. et Beat, On Cladophora pellucida. petit 

 Port. Vazon. 



