KONGL. SV. VET. AKADEMIENS HANDLINGAR. BAND 20. N:0 5. 223 



Hahitat. It occurs in the greatest number and most richly developed on rocky bottora 

 within the sublitoral zone at a depth of 3 — 15 fathoins, and is met with in exposed as 

 well as sheltered localities. Speciraens taken in the latter part of the sumraer on the 

 west coast of Greenland bear zoosporangia. 



Geogr. Distrih. It belongs to the American Arctic Sea and Baflön Bay. Its most 

 northern known locality is Whale Island on the west coast of Greenland about Lat. 

 N. 77° 30'. I cannot determine where its maximum of frequency is situate. 



Localities: The American Arctic Sea: Port Kennedy, Union Bay, Assistance Bay, 

 and Hudson Bay. 



Baffiji Bay: Curaberland Sound, the west coast of Greenland at several places, as 

 Lichtenau, Julianeshaab, Sukkertoppen, Holstenborg, Egedesminde, Hunde Island, God- 

 havn, Claushavn, Jakobshavn, Rittenbenk, Melville Bay and Whale Island. 



Gen. Phyllaria (Le Jol.) 



Exam. p. 59; spec. excl. 

 Phyllaria dermatodea (De la Pyl.) Le Jol. 



1. c. Lnrainavia dermatodea De la Pvl. Prod. Tene neuve, p. 180. 



Pil. stipitis tela ceiitrali mere parencliymatica a celhilis membrana valde incrassata emiiientibus, Innt^issi- 

 mis, plus minus ramosis circuradata; lamina obscure olivaceo-fusca, demum coriacea vel coviaceo-membrnnaoea; 

 cryptostomatibus in planta juvcnili paucis; Tab. 25 fig. 1 — 4. 



f. typica nob. 



f. cryptostomatibus in planta adulta numerosioribns, foveas profundioros, raargine elevato civcumdatas 

 constituentibus. 



Descr. Saccorhiza dermatodea Parl. New Engl. Alg. p. 95. 

 Fig. Laminaria dermatodea De la Pyl. 1. c, t. 9, fig. G. 

 Exsicc. » lorea Aresch. Alg. Scand. exsicc. N:o 21.3. 



f. arctica nob. 



f. cryptostomatibus in planta adulta icque ac in planta juvcnili perpauois vol fere nullis, paruni immersis, 

 raargine nullo circumdatis. 



Sijn. Laminaria Biierii Nyl. et Stel. Herb. Fenn. p. 73. 



» » Post. et Eupr. 111. Alg. p. II, sec. Gobi, Algenfl. Weiss. Meer, p. 75. 



» dermatodea J. G, Ag. Spetsb, Alg. Till. p. 28. 



Phyllaria dermatodea Gobi, 1. c. 

 Saccorhiza dermatodea Aresoh. Obs. Phyc. ,3, p. 11. 



» » J. G. Ag. Enum.; Spetsb. Alg. Till. p. 31; ex parte; Grönl. Alg. p. 110. 



» » Kjellm. Spetsb. Thall. 2, p. 19; ex parte; Algenv. Murm. Meer. p. 36; 



ex parte. 



Remark on the species. J. G. Agardii in Spec. Alg. has kept up and characterized 

 as distinct species two formerlj' known Phyllarice, Ph. lorea and Ph. dermatodea,. The 

 same algologist in Symbolai ad La.mina.rieas points out the existence of decided diffe- 



