20O 



SAUNDERS [436] 



Family RHODTMENIA CEsE. 

 Rhodymenia pertusa (P. & Rupr.) J. Ag. 



On rocks in the lower part of the sublittoral zone, Yakutat Bay 

 (205) ; Prince William Sound (267 and 271). 



No. 271 is a smaller form and not at all pertuse. 



Rhodymenia palmata (L.) J. Ag. 



On rocks in the upper part of the sublittoral zone. Glacier Bay 

 (88) ; Yakutat Bay (206) ; Prince William Sound, near Orca (310) ; 

 Kukak Bay (345) ; Popof Island (378). 



The entire form of this species seems to be the more common on the 

 Pacific Coast, though the palmately divided form and the form with 

 numerous proliferations are also abundant. 



The plant is gathered in large quantities, dried and eaten by the In- 

 dians of the northwest coast, as is Porphyra pertusa by the China- 

 men on the California coast. 



Plocamium coccineum uncinatum J. Ag. 

 In the sublittoral zone, Sitka (148). 



Halosaccion firmum (P. & R.) J. Ag. 



In the sublittoral zone in a quiet muddy cove, Cook Inlet (414). 

 This species was collected at only the one station, but it was abundant 

 there. 



Halosaccion fucicola (Post & Rupr.) J. Ag. 



On rocks, Rhodomela larix, and other algae in the littoral zone 

 from Puget Sound to Bering Sea. Victoria (5) ; Annette Island 

 (33) 5 Sitka (1450) ; Prince William Sound; Popof Island. 



Halosaccion ramentaceum (L.) J. Ag. 



In the sublittoral and littoral zones. Kukak Bay (331, 317) ; Cook 

 Inlet (414). 



Nos. 317 and 414 agree with the typical form of this variable spe- 

 cies. No. 331 is very close to the forma densa of Kjellm. It was found 

 well up in the littoral zone while the other forms are sublittoral. At 

 each station this species was collected only once. 



Halosaccion tilesii (Ag.) Kjellm. 



In the littoral zone from Wrangell to Bering Sea. Wrangell (54) ; 

 Yakutat Bay (235, 248, 249) ; Prince William Sound (3060 ) ; Ku- 

 kak Bay (453). 



Halosaccion microsporum Rupr. 



In the littoral zone. Glacier Bay (85, 109) ; Yakutat Bay (452). 



