A Monograph of the Genus Alaria. 123 



RosENv. as having been collected in the same region. He remarks 

 the variety to be " so closely connected with A. granclifoUa J. Ag. 

 that according to our present knowledge of these forms they can 

 not be said to differ in anything, but their size." If he mentions 

 in a varietal rank a specimen which differed in nothing but the 

 size, it is in our conception naturally to bo identified with the 

 type. K.JELLMAN has also emphatically stated that the young in- 

 dividuals of A. grandifolia collected in Spitzbergen all agree with 

 A. memhranacea J. Ag. Cfr. Spetzbcrgens Thallophyter, II, p. 12. 

 Some of the original specimens of the latter at Lund justify the 

 view of JÖNSS0N and Kjellman, but some of them, especially those 

 from Greenland, appear to me hardly distinct from A. Pylaii Geev. 

 The specimens treated by Kjellman as A. memhranacea in Algae 

 Arct. Sea, p. 215, are to be brought under the present species. 



Locality. Jan Mayen (Jönsson) : Norwegian coasts ; Nord- 

 landen (Kjellman), Finmarken (Kjellman), Maasö (Kjellman), 

 Gjesvœr (Kjellman), Berlevaag (Foslie), Kiberg (Foslie), Kjölle- 

 fjord (Foslie) : Spitzbergen ; North Gänso Cape (Kjellman), South 

 Gänse Cape (Kjellman) : Siberian Sea ; Irkaipi (Kjell^l\n) : Green- 

 land ; Tasiusak (Jönsson), Tiningnekelak (Jönsson), Nualik (Jöns- 

 son), Kap Borlase Waren (Jönsson), Ikerasak (Jönsson), Capo 

 Bismark Peninsula (Rosen venge). 



Alaria angusta Kjellm. 

 (Plate XV, fig. 1-4.) 



Om BGi-inghafvets Algflora, p. 33, Tab. 3, fig. 1-4.-De Toni : 

 Syll. Alg. Ill, p. 332. 



= Alaria laticosta Kjellm.: Om Beringhafvets Algflora, p. 40, 

 Tab. 6, fig. 1-3.— De Toni : Syll. Alg. Ill, p. 331. 

 2 = Alaria esculenta P. et R. : Illnstr. Alg., p. 11. p.p- 



