v^oL. 1] Setchell- Gardner. — AJgcB of Northwestern Americn. 243 



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

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

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

 Scijtosipli on b k llosus . 



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 everj^ stage can be found, sometimes even in the same bunch 

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

 typical ScytosipJion bullosns as Saunders has figured and dis- 

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

 Calif oruian material, shows how the lolies 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 

 ai^proximating very nearly, at least, to the type of ScytosipJion 

 hidlosus. A similar form is described below under Soranthera 

 ulvoidea P. & R. 



Scytosiphon lomentarius (Lyngbye) J. Agardh. 



On rocks and stones in the litoral zone. Distributed along 

 the whole western coast of North America: Port Clarence, 

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

 and Snodgrass, No. 5808! (Setchell, 1889, p. 591): west shore of 

 Amaknak Island. Bay of Unalaska, Alaska, ir.A.^S'. and A.A.L.. 

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

 under Chorda fit nm var. fistulosa) \ Uyak Bay, Kadiak Island, 

 Alaska, TU.A.^S. and A.A.L., No. 5087! ; Shumagin Islands, 

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

 Island, Alaska, Saunders {I'dOl, p. 421): Port Renfrew, B. C, 

 Tilden. No. 347b!, under Chordaria attenuata; San Juan Island, 

 Wash., Tilden, No. 347a!, under Chordaria attenuata; west coast 

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

 San Juan Island. Wash., Tilden, No. 246! 



Scytosiphon lomentarius f. complanatus Rosenvinge. 



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



Phyllitis fascia (Mueller) Knetzing. 



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

 Alaska, ir..4./S'. and A.A.L.. No. 401G! ; Uvak Bav, Kadiak 



