A Monograpli cf the Cemis Alarit. Ç3 



Saunders' specimen delineated by himself (1. c., PL LY) may bo 

 referred to either the present or A. ochotensis. His description for 

 his plant is so brief tliat I am nnable at present to reach a con- 

 crete decision. Bat the fine corrugation of the blade, so excellent- 

 ly delineated by him, justifies the referring of the plant to this 

 species. The fact that in his plant the scars of the dropped 

 sporophylls are found on both sides of the stipe till near the hold- 

 fast, point at the same time to the next species. 



In Grönland Lam. ocli Fuc, J. Agardh doubts Plias, lomjipes 

 RuPE. to be equivalent with his A. grandifoUa. On examining the 

 original of the latter at Lund, I can not agree with J. Agaedh's 

 view about the identity of these two species. 



J. Agardh seems to have regarded Plias, macroptenun Rupr. 

 as comparable with Laminaria Pi/Iaii De la Pyl. Cfr. Spetzbergens 

 Alger, p. 30. However Ruprechï's species may cover more than 

 one form of plant, no specimen referrable to A. Pylail is to be 

 found among the originals of Phas. macroptenun in the lierbariura 

 of the Academy of Science of Petrograd. 



The name Phas. alatum Rupr. var. Jatifo^ium Rupr. has prac- 

 tically the same hmitation as A. escidenta latifoUum P. et R. After 

 careful study of the original specimens in Petrograd, the plants 

 under this nam3 are quite inseparable from those under Plias, alatum 

 macropterum Rupr. and comprise A. Pylaii Grev., A. prœhnga 

 Kjellm. and A. macroptcra in the sense taken in the present paper. 



A specimen from Petropaulowsk, Kamtschatka, bearing in 

 Ruprecht's own handwriting the note : " Alar la marginata P. R. ? 

 est potius A. escidenta var. hdifoUa l\\. Alg." is in the herbarium 

 of the Academy of Sciences of Petrograd. This is to be referred 

 to the present species. 



Locality. Kurile Islands (Herb. S. A. C.) ; Port Ochotsk 



