A CATALOGUE OF THE BRITISH MARINE ALG.E 89 



C. gracillwnun Schm. (= Oallithamnion gracillimum Harv.). 

 Coasts of Cornwall (Falrnouth, Torpoint) ; Devon (Ilfracombe, 

 Plymouth, Torquay, Exmoutb). Wales (Beaumaris, Milford Haven). 

 Scotland: Fife (Kincraig, Earlsferry); Bute f Arran and Cumbrae). 

 Ireland (Black Castle, Wicklow). Rare. 



Tribe PTILOTE^E Schm. 

 Gen. 218. PLUMARIA Stackb. 



P. eleyans Scbm. (= Ptilota sericea Harv.). Common all round 

 the shores of the British Islands. 



Gen. 219. PTILOTA Ag. 



P. plumosa Ag. Coasts of Yorkshire (Scarborough, Filey) ; 

 Durham (Roker, Sunderland, &C:) ; Northumberland (Cullercoats, 

 Alnmouth. Holy Island, Berwick); Cheshire (Hilbre Island) ; Isle 

 of Man (Castletown). Wales (Anglesea). Scotland: Berwicks. 

 (Burnmouth) ; Haddington (Dunbar, North Berwick) ; Fife (Elie, 

 Earlsferry) ; Forfar ( Arbroath) ; Kincardine (Stonehaven) ; Aberdeen 

 (Peterhead); Elgin (Lossiemouth) ; Caithness (Wick); Orkney 

 (Kirkwall) ; Argyle (Loch Etive, Campbeltown) ; Bute (Cumbrae, 

 Arran); Ayr (Ayrheads). N. & W. Ireland. Very common on the 

 shores of Scotland, northern England, and north and west Ireland. 

 (Obs. The P. plumosa of the old Floras of Cornwall, Devon, 

 Dorset, Hants, Sussex, Kent, and Norfolk must be referred to 

 Plnmaria eleyans, which was formerly regarded as a variety of the 

 present species.) 



Tribe CROUANIE.E Schm. 



Gen. 220. ANTITHAMNION Nag. 



A. cruciatum Nag. (= Callithamnion cruciatum Ag.). Coasts of 

 Cornwall (Lizard, Looe) ; Devon (Plymouth, Salcombe, Torquay); 

 Hants (Isle of Wight) ; Sussex (Brighton) ; Cheshire (Hilbre 

 Island). Wales (Auglesea, Milford Haven). Scotland : Bute 

 (Arran); Kirkcudbright (Colvend). Ireland: Cork; Ferriter's 

 Cove, Kerry; and coast of Down. Rare. Var. /3 pumilum 

 (Harv.). Cornwall (Lizard) ; Dorset (Portland). Ireland (Mil- 

 town Malbay). Rare. 



A. Plumula Thur. Coasts of Cornwall (Padstow, St. Minver, 

 Mount's Bay, Falmouth, Looe); Devon (Ilfracombe, Plymouth, 

 Salcombe, Torquay, Sidmouth) ; Hants (Isle of Wight) ; Sussex 

 (Brighton) ; Kent (Folkestone) ; Essex (Estuary of the Orwell) ; 

 Norfolk (Yarmouth, Cromer); Yorks. (Scarborough); Northumber- 

 land (Berwick) ; Isle of Man. Scotland : Edinburgh (Caroline 

 Park, Joppa) ; Fife (Elie i; Forfar (Dundee, Arbroath); Aberdeen 

 (Peterhead) ; Orkney (Kirkwall) ; Bute (Arran, Cumbrae) ; Ayr 

 (Ardrossan). Ireland: Cork (Bantry) ; Dublin (Killiney, Clontarf) ; 

 Antrim (Portrush). Channel Islands. Not uncommon. Var. 

 ft cri-spum J. Ag. Cornwall (St. Minver, Mount's Bay, Falmouth) ; 

 Devon (Plymouth) ; Dorset (Weyrnouth). Channel Islands (Jersey). 

 Rare. Var. y spinescens Stro'mf. Northumberland (Berwick). 

 Var. boreale Rke. Bute (Arran, Cumbrae); Orkney I Kirkwall). 

 Very rare. 



