2 Vol. XLIII , Art. 1.— K. Yendo : 



specific positions ; secondly, collectors who know but little of the 

 variability of the forms are inclined to choose smaller specimens 

 in the field as more suitable for herbaria. 



The present writer spent a summer on the west coast of 

 Vancouver Island, B. C, and there he actually observed and col- 

 lected various species of Alaria indigenous to the locality. A 

 half-year trip along the Kurile Islands and iti Kamtschatka as 

 well as the botanizings on the coast of Hokkaido (Yesso), where he 

 now lives, have also given him many opportunities of studying the 

 subject among living spechnens. These two localities are the most 

 important fields for the genus, the majority of the species extant 

 being found there. He also paid special attention to the original 

 and the authentic specimens of the genus during his two years 

 travel in Europe, paying visits to the important herbaria. He now 

 considers himself justified to undertake the enterprise of preparing 

 a monograph of this genus, a genus well defined from the others 

 but veiy unclear within itself. 



The present monograph, however, must not be taken as an 

 exhaustive treatise. The species from the North Atlantic certainly 

 require more extended observation, and some from the north-west 

 coast of North America a careful revision with ample material. 

 It is simply offered as a suggestion with the hope that it may 

 induce others to complete our knowledge on the subject. 



In preparing this paper the author is under obligation to 

 Prof. 0. NoEDSTEDT of Ijuud for the photographs of J. Agardh's 

 type specimens, and to Dr. C. Skottsberg of Upsala for an anato- 

 mical examination of the type specimen of Alaria hmceolata Kjelkvi. 

 Dr. F. C. E. BÖRGESEN of Copenhagen has kindly shown me his 

 Faeröose collections and favoured mo with various papers written 

 by him on Alaria, and Prof. W. A. Setchell of Berkeley was 



