vol.i] Setchell- Gardner.— Algae, of Northwestern America. 243 



On rocks in the lower literal zone. Seldovia, Cook Inlet, 

 Alaska, Saunders (1901, p. 421) and in Tilden, American Alga?, 

 No. 351b!; Sitka, Alaska, Saunders (1901, p. 421); all under 

 Scytosiphon bullosus. 



A careful comparison of the specimens of this species of 

 Saunders as to the specimens distributed and as to the plants in 

 the type locality at Pacific Grove, California, has convinced us 

 that every stage can be found, sometimes even in the same bunch 

 of plants, from typical G. sinuosa, as Saunders regards it, to 

 typical Scytosiphon bullosus as Saunders has figured and dis- 

 tributed it. The series of figures (pi. 18, f. 13-15) drawn from 

 Californian material, shows how the lobes of this form take on 

 various shapes, and when we have one or more long finger- 

 shaped lobes far exceeding the others, then, we have a plant 

 approximating very nearly, at least, to the type of Scytosiplwn 

 bullosus. A similar form is described below under Soranthera 

 ul void ea P. & R. 



Scytosiphon lomentarius (Lyngbye) J. Agardh. 



On rocks and stones in the litoral zone. Distributed along 

 the whole western coast of Noi-th America: Port Clarence, 

 Alaska, Kjellman (1889, p. 50) ; St. Paul Island, Alaska, Greeley 

 and Snodgrass, Xo. 5808! (Setchell, 1889, p. 591); west shore of 

 Amaknak Island. Bay of Unalaska, Alaska, W.A.S. and A.A.L.. 

 No. 3282! ; Unalaska, Alaska, Postels and Euprecht (1840, p. 19, 

 under Chorda filum var. fistulosa) ; Uyak Bay, Kadiak Island, 

 Alaska, W.A.S. and A.A.L., Xo. 5087!; Shumagin Islands, 

 Kukak Bay, Yakutat Bay, Glacier Bay, Sitka, and Annette 

 Island, Alaska, Saunders (1901, p. 421); Port Renfrew, B. G, 

 Tilden. Xo. 347b!, under Ghordaria attenuata; San Juan Island, 

 Wash.. Tilden. Xo. 347a!, under Ghordaria attenuata; west coast 

 of Whidbey Island, Wash., N.L.G., No. 100!; Friday Harbor, 

 San Juan Island, Wash., Tilden, Xo. 246! 



Scytosiphon lomentarius f. complanatus Rosenvinge. 



Glacier Bay and Juneau, Alaska, Saunders (1901, p. 421). 

 Phyllitis fascia (Mueller) Kuetzing. 



On stones in the lower litoral zone. Iliuliuk, Unalaska, 

 Alaska, W.A.S. and A.A.L., No. 4016!; Uyak Bay, Kadiak 



