KONGL. SV, VET. AKADEMIENS HANDLINGAIl. BAND, 20. N:0 5. 147 



The Kara Sea: in Uddebay on the east coast of Novaya Zemlya, abundant. 

 The American Arctic Sea: according to Harv. Ner. Am. 1. c. 

 Baffin Bay: Cumberland Sound; the west coast of Greenland at Godthaab, Hol- 

 stenborg, Hunde Islands, Jakobshavn and Disco Island (?). 



Of the two forms the more common one is f. angusta, as far as my observations go. 



Gen. Plocamium (Lamoue.) Lyngb. 



Hydr. Dan. p. 39; Lamouk. Ess. p. 137; lira. mut. 



Plocamium coccineum (HuDS.) Lyngb. 

 1. c. Fucus coociueus Hhds. F1. Angl. p. 586. 



f. typica. 



Descr. Plocamium coccineum J. G. Ag. Epicr. p. 339. 



Fig. » » Hauv. Phyc. Brit. t. 44, fig. 1—8. 



Eassioc. » » Akesch. Alg. Scand. exsicc. N;o 203. 



f. uncinata Ag, 



Delesseria Plocamium d uncinata Ag. Spec. Alg. 1, p. 181. 

 Descr. Plocamium coccineum var. unoinatum J. G. Ag. Epicr. p. 339. 

 Fig. » a ^ uncinata Harv. Phyc. Brit, t. 44, fig. 9. 



Sy7i. Plocamium coccineum Kleen, Nordl. Alg. p. 17. 



Habitat. According to Kleen it grows on deep stony and shelly bottom, and 

 bears sporocarps and tetrasporangia in July and August at Nordlanden. 



Geogr. Distrib. It is known only from the Atlantic region of the Polar Sea. 



Localities: The Norwegian Polar Sea: Nordlanden, the most northern locality of 

 the plant. It is generally pretty scarce here, being reported common by Kleen only 

 from one place, viz. KOst. Both the typical form and f. uncinata are to be found in 

 Kleen's collections. 



Gen. Rhodymenia (Grev.) J. G. Ag. 



Alg. Lie'bm. p. 15; GiiEV. Alg. Brit. p. 84; char. mut. 



Rhodymenia palmata (L.) Grev, 



1. c. p. 93. Fucus palmatus L. Spec. PI. 2, p. 1162. 



f. typica. 



cc. nuda nob, 

 f. fronde a stipite cuneatim dilatata, dichotoma, subpalmata, margine nudo. 

 Descr. Fucus palmatus Turn. Hist. Fuc. 2, p. 114. 

 Fig. » » » » » t. 115, fig. a. 



