KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND. 20. N:o 5. By | 
Syn. Bryopsis plumosa Asam. Alg. Hayes, p. 96. 
» » Croanu. Fl. Disc. p. 460. 
» » KLEEN, Nord]. Alg. p. 40. 
Habitat. On the north coast of Norway it grew in rock-pools in the litoral zone, 
scattered, attached to stones or Lithothamnion polymorphum. The Norwegian specimens 
collected in July and August are sterile and very feebly developed. 
Geogr. Distrib. Known from the Norwegian Polar Sea and Baffin Bay. In the 
latter region it goes far northwards, being reported by AsumMeap from Smith Sound 
between Lat. N. 78° and 82°. 
Localities: The Norwegian Polar Sea: Nordlanden, rather rare at Fleinver and 
Rost. 
Baffin Bay: The west coast of Greenland, exact locality unrecorded; Smith Sound. 
Fam. CHARACIACE# (Naie.) Wirvrr. 
Gotl. och Ol. Alg. p. 32; Nae. Gatt. einz. Alg. p. 64, excl. gen. 
Gen. Characium Ax. Braun. 
in Kurz. Spec. Alg. p. 208. 
Characium Marinum nob. 
Descr. et Fig. Characium spec. Kyetim. Spetsb. Thall. 2, p. 57 et t. 4, fig. 10. 
Habitat. Of this alga, for which I think fit now to propose a special name, I 
have found only one individual. This was attached to Pylaiella litoralis and furnished 
with ripe zoospores, when taken in the month of October. 
Locality: The Greenland Sea: Musselbay on the north coast of Spitzbergen. 
Gen. Codiolum Al. Braun. 
Ale, mnie: p. 19. 
Codiolum Longipes Fostiz, 
Arct. Havalg. p. 11. 
Descr. et Fig. Codiolum longipes Foslie |. c. et t. 2, fig. 4. 
Exsice. » » » in Wirrr. et Norpst. Alg. exsice. N:o 458. 
Addition to the description of the species. The stipe does not always pass into the 
club-head so without a limit, as appears in the figures of Fostim. Among the speci- 
mens kindly communicated to me by Fostm there are several that accord nearly with 
C. gregarium Au. Braun in regard to the shape of the club-head. I think I ought to 
point out this fact, because it shows that C. longipes is a species very slightly diffe- 
rentiated from C. gregarium. 
