Vol. 1] SefcJiell-Ganhier. — Algce of Northwestern America. 285 



Fucus evanescens f. nanus Kjellman? 



Yakutat Bay, Alaska, Bev. Alhrn Johnson, No. 5712! (sterile) . 



A dwarf, slender, irregnlarly branched form, referred here 

 doubtfully on aeeount of its sterile condition. 



Fucus evanescens f. bursiger (J. Agardh) Kjellman. 



On rocks at extreme ujjper tide limit. Summer Bay, Unalaska, 

 Alaska, W.A.S.and A.A.L.,NoA0ry2l ; Dutch Harbor, Unalaska, 

 Alaska, 7?. C. McGregor, l^o. oGSdal ; Whidbey Island, Wash., 

 X.L.G., No. 90! 



A depauperate form of the uppermost portion of the litoral 

 zone, agreeing with the description and figure of J. G. Agardh 

 (1870a, p. 35, pi. 3). 



Under Fucus t^rdiiescfns are probably to be placed the older 

 references to the occurence of F. vesicidosus, a species lacking, 

 in all probability, on our western coast. Most of the references 

 state that the species is represented by the form without vesicles. 

 The following are to be noted: 



F. vesicuJosHS Postels and Ruprecht (1840, p. 12). Sitka, 

 Alaska. 



F. vesicnlosus var. minor Harvey (1841, p. 134). Kotze])ue 

 Soimd, Alaska. 



F. vesicnlosus Bailey and Harvey (1862, p. 160). Puget 

 Sound. 



F. vesicnlosus var. evesiculosus Harvey (1862, p. 163). 

 Esquimalt and Victoria, B.C. 



F. vesicnlosus Harvey (1872, p. 463). Kotzebue Sound, 

 Alaska. 



Family SARGASSACE.^. 



Cystophyllum geminatum (Agardh) J. Agardh. 



On rocks, in sheltered places, lower litoral aud ui)per sul)- 

 litoral zones. Bay of Morozof (Morzhovoi Bay), Alaska, Toivn- 

 send, No. 5778!; Shumagin Islands and Kukak Bay, Alaska, 

 Saunders (1901, p. 432, under C. Lepidiuni); Kadiak Island, 

 Alaska, Ruprecht (1851, p. 348, under Cystoseira thfjrsigera); 

 Yakutat Bay, Sitka, and Wrangell, Alaska, Saunders (1901, p. 



