14 



The specimens are mostly large, up to 17 cm. long and 12 cm. 

 broad; but mingled with them are however smaller specimens, 

 2 cm. long, 1,5 cm. broad. Many of the larger specimens have 

 discs and a stalk of up to 2 mm's length; the larger plants 

 supplied with discs were 10 — 11 cm. long and 10 — 15 cm. broad. 

 The specimens were gathered in May, July and September, in 

 a depth of 3 — 20 fathoms. Specimens with cystocarps growing 

 wartlike in the frond were gathered in May. The cystocarps did 

 not seem to be quite ripe. 



Gr. or.: Tasiusak, Stenö, Turner Ö, Sabine Ö. 



Fam. Gigartinaceœ. 



Phyllophora Grev. 



28. P. Brodiæi (Turn.) J. Ag. *iDterriipta (Grev.) К. Rosenv. 

 Grl. Havalg. p. 821, Deux. Mém. p. 32. 



All the specimens belong to subsp. interrupta which seems 

 to be common; they are up to 16 cm. long and were gathered 

 in a depth of up to 19 fathoms both in exposed places and in 

 Turner Sund in a sheltered place, in rapid current. The species 

 was gathered sterile in May — July and September — October. 

 Young shoots were abundant in May and September. 



Gr. or.: Кар Dan, Tasiusak, Tiningnekelak, Ödesund, Turner 

 Sund, Sabine Ö. 



Actinococcus Kiitz. 



29. A. subcutaneus (Lyngb.) K. Rosenv. Grl. Havalg. p. 822. 

 In adhesion to Darbishire's previous view regarding this 



species M, Rosenvinge mentions it in Deux. Mém. (p. 32 — 34) 

 as the nemathecia of Phi/llophora Brodiæi * interrupta^ but in 

 consequence of Darbishire's last treatise on A. subcutaneus'^) 



') 0. Darbishire: Die Phvllophora-Avten der westlichen Ostsee deutschen 



Antheils, Kiel 1895. 

 '') 0. Darbishire: On Actinococcus and Phyllophora. Annais of Botany 



Vol. 13, 1899. 



