KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:0 5. 167 



Gen. Glgartina (Lamour.) J. G. Ag. 



Epior. p. 189; Lamour. Ess. p. l'M; char. mut. 



Gigartina mamillosa (GooD. et Woodw.) J. G. Ag. 



Alg. Med. p. 104. Fucus mamillosiis Goou. et Woodw. Linn. Träns. 3, p. 174. 



Descr. Gigartina mamillosa J. G. Ag. Epicr. p. 199. 

 Fig. •• ■> Hakv. Phyo. Brit. t. 199. 



Exsicc. » » Aresch. Alg. Scand. exsicc. N:o 10. 



Syn. Eucus mamillosus Sommerf. Suppl. p. 183. 

 Wg. Fl. Lapp. p. 496. 

 Gigartina mamillosa Kleen, Nordl. Alg. p. 18. 

 Rhodyraeiiia mamillosa Aresch. Phyo. Scand. p 296. 



Hahitat. On the coast of Norway the plant is litoral, attaehed to rocks or stones 

 above low-water mark, or growing in rock-pools between tide-marks. It belongs chietly 

 to the lower portion of the sublitoral zone and is almost exclusively pelagic. Most 

 often it occurs greo-arious in large masses. In the southern part of the Norwegian 

 Polar Sea it has been found with sporocarps in July and August, in the northern part 

 with young organs of that kind in the latter part of August. 



Geogr. Distrib. Known from the Norwegian Polar Sea and Baffin Bay. It has 

 probably its maximum of frequency within the former region. Its most northerly 

 certain locality is Gjesva3r near North Cape about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Nordlanden, comraon and plentiful; Fin- 

 marken at Öxfjord, Maasö, Gjesvasr, and the southern coast of Magerö, pretty common 

 and abundant. 



Baffin Bay: the west coast of Greenland, according to specimens in the herbarium 

 of the Copenhagen Museum. 



Gen. Cliondrus (Stackh.) J. G. Ag. 



Spec. Alg. 2, p. 244; Stagkh. Ner. Brit. sec. J. G. Ag. 1. c; char. mut. 

 C hon dr US crispus (L.) Lyngb. 



Hydr. Dan. p. 15. Fucus crispus L. Mänt. p. 134. 

 Descr. Chondrus crispus J. G. Ag. Epicr. p. 178. 

 Fig. » n Harv. Phyc. Brit. t. 63. 



Exsicc. » » Aresch. Alg. Scand. exsicc. N:o 156. 



&'l/n. Chondrus crispus Aresch. Phyc. Scand. p. 308. 

 « " Kleen, Nordl. Alg. p. 18. 



Fucus crispus Gunn. El. Norv. 2, p. 91. 

 Wg. Fl. Lapp. p. 497. 



