78 A CATALOGUE OF THE BRITISH MAKINE ALG^E 



mouth, Holy Isle, Berwick); Isle of Man. Scotland: Generally 

 distributed. Ireland : Antrim (north side of Belfast Lough, Larne, 

 Giant's Causeway ). Common on the shores of Scotland and Northern 

 England and Ireland. 



Tribe LAURENCIE^ Schm. 

 Gen. 197. LAURENCIA Lam our. 



L. obtma Lamour. a yemiina Hauck. Coasts of Cornwall (Mount's 

 Bay, Falmouth) ; Devon (Plymouth, Torbay, Exmouth); Dorset 

 (Weymouth, Swanage); Hants (Isle of Wight); Sussex (Bognor, 

 Brighton, Hastings) ; Yorks. (Flamborough Head); Durham (Sim- 

 derland) ; Isle of Man. Wales: Glamorgan (Worm's Head). Scot- 

 land: Firth of Forth; Orkney Islands; Argyle (Loch Etive, Falls 

 of Lora, Kintyre) ; Bate (Isles of Arran and Cumbrae) ; Ayr 

 (Ardrossan, Portincross, Ballantrae) ; Solway Firth. Ireland : 

 Cork (Bantry) ; Dublin (Ireland's Eye) ; Down (Bangor). Channel 

 Islands. Not uncommon. Var. crucij'era Hauck. Coast of Dorset 

 (Weymouth, Swanage). --Var. pyr ami-data J. Ag. Cornwall (Scilly 

 Islands) ; Dorset (Chapman's Pool, Swanage). Rare. 



L. ccBspitosa Lamour. Coasts of Cornwall, Devon, Dorset, Hants, 

 Sussex, Kent, Essex, Suffolk, Yorks., Durham, Northumberland, 

 Wales (Anglesea), Scotland, Ireland, and the Channel Islands. 

 Common. 



L. pinnatijida Lamour. Coasts of Somerset, Cornwall, Devon, 

 Dorset, Hants, Sussex, Kent, Norfolk, Yorks., Durham, Northum- 

 berland, Isle of Man, Wales, Scotland, Ireland, and the Channel 

 Islands. Common and abundant almost everywhere on the British 

 coasts. Var. fi osmunda Harv. and var. y lituralis Harv. Common. 



Tribe AMANSIE^E Schm. 

 Gen. 198. HALOPITHYS Kiitz. 



H. incurvus Batt. (= F. incunms Huds. Fl. Angl. p. 470 (1762); 

 F. pin (i sir aides Gmel. Hist. Fuc. p. 127 (1768); Ri/tiphicea pinas- 

 truides Ag.). Coasts of Cornwall (Falmouth, Whitsand Bay) ; Devon 

 (Plymouth, Torquay, Sidmouth, Axmouth, Lyme Regis) ; Dorset 

 (Weymouth, Swanage); Hants (Isle of Wight, Portsmouth); Sussex 

 (Bognor, Brighton, Hastings); Kent (Deal); Norfolk (Cromer). 

 Channel Islands. Not uncommon on the southern shores of Eng- 

 land and those of the Channel Islands. 



Tribe POLYSIPHONIE^E Schm. 

 Gen. 199. CHONDRIA Ag. 



C. tenmssima Ag. (= Laurencia tenuissinia Harv.). Coasts of 

 Cornwall (Falmouth) ; Devon (Bovisand, Torbay) ; Dorset (Wey- 

 mouth, Swanage, Studland) ; Hants (Isle of Wight) ; Sussex 

 (Brighton) ; Isle of Man. Scotland : Bute (Isle of Arran) ; Ayr 

 (Saltcoats). Ireland: Cork (Ballycotton) ; coast of Waterford. 

 Channel Islands. Rare. 



C. dasyphylla Ag. (= Laurencia dasyphylla Grev.). Coasts of 

 Cornwall (Trevone, Mount's Bay, Mount Edgcumbe) ; Devon 

 (Plymouth, Torquay, Teignmouth, Exmouth, Sidmouth, Dawlish) ; 



