130 ^'»^l XLIIL, Art. l.-K. Yendo : 



distinguished from them by the presence of cryptostomata in the 

 blade. In some specimens, however, they are often absent in a 

 lower portion, and in some old ones they remain simply a 

 brownish dots on the blade, losing all the hairs from the very 

 base. Thus the distinguishing character is frequently unreliable. 

 In such case it may be separated from the former two species by 

 the holdfast, and from the last one by the sporophylls. 



The illustration of Alar la delineated by Saunders as Harr. 

 Alaska Exped., Alga3, Plate LIII, under A. laticosta, is rather em- 

 barrassing for positive determination. He does not give its full 

 description but simply remarks that his determination was after 

 receiving Kjellman's opinion on one of his specimens and that it 

 is easily recognized by the tufts of " long cryptostomata " richly 

 frosted on the surface of the blade. The type specimen of A. 

 lanceolata Kjellm. has cryptostomata but not in such a way as to 

 count as a specific peculiarity ; and the density of cryptostomata 

 is never of specific importance. The species is diagnosed to have 

 the sporophylls fasciculate and the type specimen shows this 

 character very well. The illustration by Saunders clearly shows 

 that they are condensed but pinnately arranged. In general ap- 

 pearance of frond, Saunders's plant resembles A. elUptica to a 

 certain extent. I have not noticed any cryptostoma in the co-type 

 of A. elUptica at Lund, and nothing is stated by Kjellman relat- 

 ing to this point. 



Locality. Sitcha Harbour (Saunders) ; Glacier Bay (Saunders) ; 

 Bering Island (IOellman) ; North Kuriles(!). 



