KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 20. N:0 5. 193 
Localities: The Norwegian Polar Sea: Nordlanden at Bodé; Finmarken at North 
Cape pretty plentiful. 
Bafjin Bay: found drifting in Davis Strait; no special place noted. 
Gen. Erythrotrichia Arrscn. 
Phye. Seand. p. 435. 
Erythrotrichia ceramicola (Lynas.) ArEscu. 
I. ec. p. 436. Conferva ceramicola Lynos. Hydr. Dan. p. 144. 
Deser. Wrythrotrichia ceramicola Argscn. |. ec. 
Fig. Bangia ceramicola Harv. Phye. Brit. t. 317. 
Syn. Erythrotrichia ceramicola Kinen, Nordl. Alg. p. 24. 
Habitat. KiLrrn has found this species growing on litoral alge. 
Locality: The Norwegian Polar Sea: Nordlanden, pretty common. 
Series FUCOIDEZ (Aa.) J. G. Aa. 
Alg. Med. p. 24; Aa. Syst. Alg. p. XXXV; lim. mut. 
Fam. FUCACE (Aa.) J. G. Aa. 
Spec. Alg. 1, p. 180; Ac. 1. c. p. XXXVII; lim. mut. 
Gen. Himanthalia Lynas. 
Hydr. Dan. p. 36. 
Himanthalia lorea (L.) Lynes. 
]. c. Fucus loreus L. Syst. Nat. Ed. 12, 2, p. 716. 
Descr. Himanthalia lorea J. G. AG. Spee. Alg. 1, p. 196. 
Fig. » » Harv. Phye. Brit. tab. 78. 
Eesice. » »  ArrscH. Alg. Scand. exsicec. N:o 2 et 251. 
Syn. Fucus loreus Gunn. Fl. Norv. 2, p. 125. 
» » Wea. Fl. Lapp. p. 499. 
Himanthalia lorea J. G. Ag. Enum. 
» »  <ARESCH, Phyec. Scand. p. 259. 
» »  Kteen, Nordl. Alg. p. 31. 
Ulva pruniformis Gunn. Fl. Norv. 2. p. 89; ex parte. 
Habitat. This alga generally grows gregarious within the lower part of the litoral 
region. At Nordlanden it is sterile in May; at the beginning of June the receptacles 
commence to develop and within a few weeks attain more than one foot in length. 
y 4a 
K. Vet. Akad. Handl. Bd 20. N:o 5. 
