KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 249 



Ralfsia verrucosa (Aresch.) J. G. Ag. 



Spec. Alg. 1, p. 62. Cruoria verrucosa Aeesch. Alg. Pugill. p. 264. 

 Descr. Ealfsia verrucosa J. G. Ag. 1. c. 

 Fig. » » KuTZ. Tab. Phyc. 9, t. 77. 



Syn. Ralfsia verrucosa Kleen, Nordl. Alg. p. 3.3; ex parte. 



Habitat. It is litoral, attached to stones or shells. It prefers sheltered bays, 

 but grows also on exposed coasts. In the Polar Sea it lives scattered in small numbers 

 and has only been found sterile here. 



Geogr. Distrib. Known only from the Norwegian Polar Sea. Its northernmost 

 place of occurrence is the south coast of Magerö about Lat. N, 71°. 



Localities: The Norwegian Polar Sea: Nordlanden, common according to Kleen; 

 Finmarken scarce on the south coast of Magerö. 



Fain. CHOPtDARIAGEiE (Ag.) Farl. 



New. Engl. Alg. p. 83; Ag. Syst. Alg. p. XXXVI; lim. mut. 



Gen. Ohordaria (Ag.) J. G. Ag. 



Alg. Syst. 2, p. '62; Ag. Syn. Alg. p. XII; lim. mut. 



Ohordaria flagelliformis Mull. 

 Fl. Dan. t. 650. 



f. typica. 

 Descr. Ohordaria flagelliformis J. G. Ag. Spec. Alg. 1, p. 66; excl. var. 

 Fig. » » Harv. Phyc. Brit. t. 111. 



Emsicc. » 1) Aresch. Alg. Scand. exsicc. N:o 97. 



f. chordwformis Kjellm. 

 Spetsb. Thall. 2, p. 28. 

 Descr. et Fig. Ohordaria flagelliformis f. chordajformis Kjellm. 1. c. et t. 1, fig, 13 — 15. 



f. ramusculifera Kjellm. 

 1. c. p. 29. 

 Descr. et Fig. Ohordaria flagelliformis f. ramusculifera Kjellm. 1. c. et t. 1, iig. 10 — 12. 

 Syn. Ohordaria divarioata Gobi, Algenfl. Weiss. Meer. p. 70, huio formse proxima. 



f. subsimplex Kjellm. 

 Descr. et Fig. Ohordaria flagelliformis f. subsimplex Kjellm. 1 c. et t. 1, fig. 16 — 18. 

 Syn. Ohordaria divarioata Gobi, Algenfl. Weiss. Meer. p. 69; sec. spec. 



» flagelliformis Aresch. Phyc. Scand. p. 366. 



» » J. G. Ag. Spetsb. Alg. Progr. p. 2; Bidr. p. 11; Grönl. Alg. p. 110. 



1) » Oroall, Pl. Disc. p. 458. 



» » DicKiE, Alg. Cumberl. p. 237; Alg. Sntherl. 1, p. 141; Alg. Nares p. 7. 



» » Gobi, 1. c. p. 70. 



K. Vet. Akad. HatitU. B.iutl. 20. N:o 6. O 2 



