520 



DICKIE ON ARCTIC ALG^. 



90 miles long, and 30 broad. It has many small islands along 

 its shores, and is indented by numerous bights. It is frequented 

 by whalers, and the Kikerton Islands, near the head of the Sound 

 are their head-quarters. The tide rises, it is said, 30 feet, forming 

 a " bore " ; but in the open strait it rises only 6 or 7 feet. Animal 

 life abounds in the upper part of the Sound ; and some of the 

 AlgcB are abundant and large. The mean temperature of the air 

 during 40 days, through August to September 9, 1861, was 35*5° 

 Fahr. that of the sea 32-7° ; observations made while the ship 

 was in the pack-ice. 



I. — Melanosperme^e. 



Fucacece. 



Fucus vesiculosue, L. 

 F. nodosus, L. 



Sporochnacece. 

 Desmarestia aculeata, L. 



LaminaHacecB, 



Agarum Turneri, P. & R. 

 Laminaria longicruris, De la P. 

 L. saccharin a, Lam. 

 L. fascia, Ag. 



Dictystacece, 



Dictyosiphon foeniculaceus, 



Grev. 

 Chorda lomentaria, Grev. 

 Punctaria plantaginea, Grev. 



ChordariacecB. 



Chordaria flagelliformis, Ag. 

 Ralfsia deusta, C. Ag. 

 Elachista fucicola. Fries. 



EctocarpacecB, 



Chastopteris plumosa, Lyngb. 

 Sphacelaria arctica, Harv. 

 S. cirrhosa, Ag. 

 F]ctocarpus littoralis, Harv. 



II. — Rhodosperme^ . 



RhodomelacecB, 



Odonthalia dentata, Lyngb. 

 Rhodomela subfusca, Ag. 

 Polysiphonia arctica, J. Ag, 



RhodymeniacecB, 



Euthora cristata, J. Ag. 

 Rhodymenia palmata, Grev. 



Cryptonemiacece, 

 Ahnfeldtia plicata, J. Ag, 

 Kallymenia Pennyi, Harv. 

 Halosaccion ramentaceum, J. 



Ag. 

 H. dumontioides, Harv. 



Ceramiacece, 



Ptilota serrata, Kiitz. 

 Callithamnion Americanum, 



Harv. 

 C. sparsum, Harv. 

 C. Rothii, Lyngb. 



HI, — Chlorosperme^. 



UlvacecE, 



Ulva latissima, L. 

 Enteromorpha intestinalis, L. 

 E. clathrata, Grev. 

 E. compressa, Grev. 



Confervacece. 



Cladophora arctica, Kiitz. 

 C. lanosa, Kiitz. 

 Rhizoclonium riparium, Kiitz. 

 Chsetomorpha melagonium, 



Kiitz. 

 C. tortuosa, Kiitz. 



OscillatoriacecB. 



Calothrix pilosa, Harv. 



Oscillatoria, 



sp. 



? Freshwater. 



Nostochinece. 

 Nostoc arcticum. Berk. 



[For other enumerations of Arctic Algae (including Diatomacece), 

 in this Manual, see pp. 239, 255, 276, 280, 319, 515; and 

 ~ further on.] 



