A CATALOGUE OF THE BRITISH MARINE ALG.& 9 



Gen. 34. PROTOCOCCUS Rab. 

 P. marinus Kiitz. Coast of Dorset (Weyniouth, Swanage). Rare. 



Fam. PALMELLACEJS Nag. 

 Gen. 35. GLOEOCYSTIS Nag. 



GT. adnata Nag. Coasts of Kent (Dover), Devon (Ilfracombe and 

 Sidmoutb), and Northumberland (Berwick). Rare. 



Fam. HALOSPH^RE^E Schm. 

 Gen. 36. HALOSPH^RA Scbm. 



H. viridis Schrn. Coast of Devon (Plymouth). Probably not 

 uncommon. 



Fam. CHARACIACEJE Wittr. 



Gen. 37. SYKIDION Wright. 



S. Dyeri Wrigbt. Coast of Ireland (Howtb, near Dublin) ; 

 Wales (Point of Ayr). Rare. 



Gen. 38. CHARACIUM A. Br. 



C. mariniun Kjellin. (= C. strictum Holm. & Batt., non A. Br.). 

 Coast of Northumberland (Berwick) ; S.W. Scotland (Cumbrae). 

 Probably not uncommon. 



Gen. 39. CODIOLUM A. Br. 



C. yreyarium A. Br. Coast of Devon (Axniouth). Rare. 



C. pusillum Foslie (= C. yreyarium Holm. Fasc. no. 60, non 

 A. Br. ; and C. lonyipes Holm. Fasc. no. 38, non Foslie). Coasts 

 of Devon (Teignmouth and Lyninouth) and Northumberland (Spit- 

 tal, near Berwick); Orkney Islands (N. Ronaldshay). Rare. 



C. Petrocelidis Euck. Coast of Northumberland (Berwick) ; 

 Firth of Clyde, &c. Not uncommon. 



Alga incerta sedis. 

 Gen. 40. PRASINOCLADUS Euck. 

 P. lubricus Kuck. Coast of Devon (Plymouth). 



Suborder CONFERVOIDE-E Ag. 



Fam. BLASTOSPORE^ Jessen. 



Gen. 41. PRASIOLA Ag. 



P. stipitata Suhr (= P. marina Crn. in Holm. Fasc. no. 21). 

 Coasts of Northumberland (Berwick), Norfolk (Yarmouth), and 

 Devon (Torquay, Teigumouth) ; S. Scotland (Dunoon, Cumbrae, 

 Joppa near Edinburgh, D unbar) ; Ireland. Not uncommon. 



Gen. 42. GAYELLA Rosenv. 



6r. polyrliiza Rosenv. (= Scluzoyonium discifer um Holm. &Batt.). 

 Coast of Northumberland (Berwick). Rare. 



JOURNAL OF BOTANY, APRIL, 1902.] c 



