128 KJELLMAN, THE ALG OF THE ARCTIC SEA. 
it with sporocarps at Nordlanden at the end of July. At the same season I have ga- 
thered specimens with young sporocarps and ripe tetrasporangia at Novaya Zemlya. On 
the west coast of Sweden the proper time for the development of the propagative or- 
gans seems to be in winter, in the months of December and January; however AREScHOUG 
states that he has found here individuals bearing sporocarps also in August and Sep- 
tember. Cp. Arrescu. Phye. Scand. p. 309. 
Geogr. Distrib. This species is known from the Atlantic as well as the arctic 
region of the Polar Sea. It is but little spread in the latter and probably is a species 
immigrated from the south. Its northernmost locality is Matotshin Shar on the west 
coast of Novaya Zemlya Lat. N. 73° 15', where it occurs in the dwarfed form fastigiata. 
Localities: The Norwegian Polar Sea: Nordlanden, f. typica, common, abundant; 
Finmarken, f. fastigiata, scarce, local at Maasé, Gjesver and Oxfjord. 
The Murman Sea: the coast of Cisuralian Samoyede-land, the west coast of No- 
vaya Zemlya and Waygats, pretty common and plentiful. 
The White Sea: scarce (?). 
Fam. WRANGELIACEZ (J. G. Aa.) Hauck. 
Meeresalg. p. 14; J. G. Aa. Spec. Alg. 2, p. 701; lim. mut. 
Gen. Spermothamnion ARESCH. 
Phye. Scand. p. 354. 
Spermothamnion Turneri (Mert.) AREscn. 
l. c¢. p. 355. Ceramium Turneri Mert. in Roru, Cat. Bot. 3, p. 127. 
Desecr. Spermothamnion Turneri Anescu. ]. ec. 
Fig. » roseolum PrinesH. Morph. Meeresalg. t. 4—6. 
Exsice. » » Argscu. Alg. Scand. exsicc. N:o 83. 
Habitat. It usually occurs within the litoral zone, attached to other alge. 
However it has also been found on stones at Nordlanden. In the Polar Sea it grows 
scattered, chiefly on exposed coasts, bearing tetrasporangia and sporocarps in summer. 
On the west coast of Sweden I have found it with plenty of tetrasporangia even in 
winter, at the end of December. 
Geogr. Distrib. It is known only from the Atlantic region of the Polar Sea. Its 
most northerly place of growth is Oxfjord in Finmarken at the mouth of Altenfjord, 
about Lat. N. 70°. Its maximum of frequency is in the southern part of the Norwegian 
Polar Sea. 
Localities: The Norwegian Polar Sea: Nordlanden common and abundant; Fin- 
marken: Oxfjord, local, rare. 
