116 Vol. XLIII., Art. 1.— K. Yendo : 



(Foslie), Mehaon (Foslie), Mandai (Wille), Norway ; Fanö (Rosen- 

 venge), Denmark ; Roscoff, France (Sauvageaux) ; Faeröese Islands 

 (Lyngbye, BÖKGESEN, etc.) ; Iceland (Lyngbye) ; Shetland (Bökge- 

 sen) ; Clare Island (Cotton) ; Cumberland (Hudson and Hakvey) ; 

 Anglesoa and Isle of Man (Dayies and Hakvey) ; Durham and 

 Northumberland (Winch and Haevey) ; Cornwall (Tuenee) ; North 

 coast of Devonshire (Mrs. Geiffiths and Haevey) ; Weymouth 

 (Stackhouse) ; Orkney (Clouston) ; Angmagsalik (Rosenvenge, under 

 A. flagellaris), Tasinsak (Jönssen under A. esculenta var. pinnata 

 K.JELLM.), Greenland. 



Alaria valida Setch. et Kjell^i. 



(Plate XII, figs. 1-3.) 



In Setch. and Gardn. : Algœ N. W. Amer., p. 278, PI. XXI.— 

 Setch. : Critical Notes on Lam., p. 11.— Id. : Kelps U. S. and Alaska, 

 p. 163. 



— Alaria valida f. longipes Setch. et Gardx. : Algre N. W. 



Amer., p. 279. 

 = Alaria curtijies Tilden: Amer. Algœ, No. 521. 

 = Alaria grandifolia Collins : Mar. Algœ of Vancouv. Island, 

 p. 110. 



Definition of the species. Root, holdfast of dendritic ramifica- 

 tion. Blade linear lanceolate, 3-4 meters in length, 15-25 cm. in 

 breadth, coriaceous, cryptostomata wanting, margin entire, undulat- 

 ing, splitting in the older parts of the blade obliquely towards the 

 midrib ; base of blade attenuated for a short length, soon expand- 

 ing upwards into an acute form. Stipe 6-10 cm. in length, lower 

 half cylindrical, 3-5 mm. in diameter, gently terete and broadened 

 above, but narrowed again at the transition point, the cylindrical 

 part naked, the upper terete part bearing the sporophylls. Midrib 



