136 KJELLMAN, THE ALG^ OF THE AKCTIC SEA. 



Visible to the naked eye. Thus there can hardly be drawn any limit, I think, between 

 these two plants, as far as they are known at present. With regard to D. alata fi angusti- 

 folia Lyngu., I am quite aware of the difficulty of determining, by means of a few dried 

 specimens, to which species such a reduced form as this should be referred. It seems 

 more probable, however, that it should belong to D. denticulata than to D. alata, be- 

 cause, as has been correctly stated already by Lyngbye, it has dentate upper axes and 

 spreading, linear branches, which are not at all or very little cut out obliquely at the base. 



In order to distinguish the present species, D. denticulata Mont., from D. denti- 

 culata Hakvey I have changed the name of denticulata for that of Montagnei. 



Habitat. On this point I know but little. According to what is stated on the 

 labels affixed to part of the specimens I have examined, this species grows within the 

 sublitoral zone, attached to Laminariacece. Several individuals bear reproductive organs, 

 but I do not know at what season these individuals were collected. 



Geogr. Distrih. It belongs to Baffin Bay, where it seems to be rather common. The 

 northernmost place where it has been ascertained to grow, is Godhavn 69° 15' Lat. N. 



Localities: Baffin Bay: on the west coast of Greenland, for instance at Tessarmiut 

 Bay, Godthaab, and Godhavn. 



Delesseria sinuosa (Good, et Woodw.) Lamouk. 



Ess. p. 124. Fiicus sinuosus Good, et Woodw. Linn. Trans. 3, p. 111. 



f. typica. 

 Descr. Delesseria sinuosa J. G, Ag. Spec. Alg. 2, p. 691. 

 Fifj. » » Harv. Phyc. Brit. t. 259. 



f. quercifolia Turn. 



Hist. Fuc. 1, p. 74. 

 Descr. Fucus sinuosus / quercifolius Turn. 1. c. 

 Exsicc. Delesseria sinuosa Arrsch. Alg. Scand. exsicc. N:o 74. 



f. lingulata Ag. 

 Spec. Alg. 1, p. 17.5. 

 Descr. Delesseria sinuosa y lingulata Ag. 1. c. 

 Fig. Phyeodrys sinuosa KiJTZ., Tab. Phyc. 16, t. 20, fig. e — f. 

 Syn. Delesseria sinuosa Aresch. Phyc. Scand. p. 291. 



» » var. J. G. Ag. Spetsb. Alg. Progr. p. 3; Bidr. p. 11. 



« » Dickie, Alg. Sutherl. 1, p. 142. 



» » Eaton, List, p. 44. 



» » Gobi, Algenfl. Weiss. Meer. p. 30. 



Kjellm. Vinteralg. p. 64; Spetsb. Thall. 1, p. 10; Algenv. Murm. Meer. p. 12; 

 Kariska hafvets algv. p. 20. 

 » " Kleen, Nordl. Alg. p. 14. 



» » Nyl. et Srel. Herb. Fenn. p. 74. 



" » Post, et Edpr. 111. Alg. p. IL 



" » Schrenk, Ural. Eeise 2, p. 547. 



» » WiTTR. in Heugl. Eeise 3, p, 284. 



