196 SAUNDERS [43 2 ] 



As his description antedates Mertens' by some sixty years it seems 

 best to the writer to reinstate the name given by him. 



Family FUCACE^ft. 



Fucus evanescens forma macrocephala Kjellm. (Plate LXII, fig. i.) 



Puget Sound ; Annette Island ; Wrangell ; Juneau ; Sitka ; Glacier 

 Bay ; Prince William Sound ; Cook Inlet ; Kukak Bay ; Shumagin 

 Islands. 



This is by far the most abundant seaweed on the northwest coast. 

 It is found in all quiet bays and protected places from Puget Sound to 

 Bering Sea, forming the characteristic light brown covering extending 

 some distance above the average tide level. In many places the plant 

 is not covered by salt water more than twice a month. It is able to 

 thrive from the moisture in the atmosphere. This species and Pylaiella 

 littoralis extend the farthest up the mouths of streams and fresh water 

 bays. 



This form is more commonly evesiculose, but there are often found 

 indefinite vesicles just below the fruiting tip, either singly or in pairs. 

 It is a variation of this form from Puget Sound that Dr. Setchell has 

 referred to F. platycarpus, which is quite a distinct species. 



Identified by Kjellman. 



Fucus evanescens forma cornuta Kjellm. (Plate LXII, fig. 2.) 



Juneau ; Yakutat Bay (256) ; Prince William Sound (2640;) ; 

 Kukak Bay (376) ; Popof Island. 



This form was collected in more exposed places than the last and is 

 not nearly as common. The plant is darker colored and firmer in 

 texture than the last, with narrower branches and fruiting tip. The 

 fruiting tip is usually not at all inflated but in one extreme variation it 

 is inflated 57 cm. long. 



Cystophyllum lepidum (Rupr.) Harvy. 



Victoria; Wrangell; Sitka (121, 190) ; Yakutat Bay; Kukak Bay; 

 Shumagin Islands. 



In slightly protected places in the elittoral zone from Puget Sound 

 to Bering Sea. Mature plants measured from I to 3 meters in length. 



RHODOPHYCEJE. 



Family BANGIACE^. 



Bangia atropurpurea pacifica J. Ag. 



Specimens of this species were collected near Victoria in Puget 

 Sound but it was not obtained in Alaskan waters. 



