208 KJELLMAN, THE ALG OF THE ARCTIC SEA. 
not found it in his rich collections of Fuci made here. I cannot decide where it reaches 
its maximum of frequency. According to my own experience it is rare at Finmarken. 
The most northerly place where it has been taken is Gjesver on the north coast of 
Norway, about Lat. N. 71°. 
Localities: The Norwegian Polar Sea: Nordlanden (?); Finmarken at Gjesver local 
and searce; Norvegia arctica Beracren according to J. G. AGARDH. 
The Murman Sea: the coast of Russian Lapland. 
Bafjin Bay: the west coast of Greenland at. Godhayn (?) and Sukkertoppen. Cp. 
with regard to the locality Godhavn J. G. Ac. Grénl. Ale. p. 110 with Gronl. Lam. 
och Puc. ‘p. 29! 
Fucus filiformis Gmel. 
Hist. Fuc. p. 72. 
f. Gmelini J. G. Ac. 
Spetsb. Alg. Till. p. 38. 
Descr. Fucus filiformis a. Gmelini J. G. Aa. |. e. 
Fig. » » (Grill, JE 5 il 
» » f. Gmelini tab. nostra 19, fig. 3. 
f. Pylaiswi J. G. Ac. 
lc 
Descr. Fueus filiformis b. Pylaisei J. G. Ac. 1. ec. 
Fig. » linearis Kurz. Tab. Phye. 10, t. 15. 
Exsicc. »  distichus Arnscn. Alg. Seand. exsicc. N:o 201. 
Syn. Fuens ceranoides We. Fl. Lapp. p. 490; ex parte. 
»  distichus Argscu. Phye. Seand. p. 257. 
» » Gost, Algenfl. Weiss. Meer. p. 52; ex parte. 
» » Gunn. Fl. Norv. 2, p. 125; ex parte(?). 
» » Keen, Nordl. Alg. p. 30; ex parte. 
» » Nyl. et Sal. Herb. Fenn. p. 73; ex parte(?). 
» » Post. et Ruer. Ill. Alg. p. Il; ex parte(?), 
» filiformis J. G. Ac. Enum.; Grénl. Alg. p. 110; Gronl. Lam. och Fue. p. 28. 
Remark on the species. Vvery algologist who has studied or intends to study the 
northern Fuci will no doubt gratefully acknowledge the great service done by J. G. 
Acarpiu towards elucidating their mutual relations in his account of them in Spetsb. 
Alg. Till. As far as I can judge, AGArpu, as was to be expected from such an ex- 
perienced, sharp-eyed, and learned algologist, has almost everywhere hit upon the truth, 
unravelled the confused knot in which those plants were formerly entangled, highly 
promoted a clear view of the series of forms, and laid a sure foundation for the future 
study of these series. Among the most difficult forms are those which belong to the 
species I’. filiformis, PF. linearis, and F. miclonensis characterized by J. G. AGarpu. They 
stand pretty distant from certain species, but nearly approach others in certain respects, 
and in some of their forms resemble each other so closely as to make it sometimes 
