318 University of California Publications. [Botany 



Halosaccion fucicola. Unalaska and Sitka, Alaska. Ruprecht 

 (1851, pp. 289, 293) ; Popof Island, Prince William Sound, Sitka, 

 and Annette Island, Alaska, and Victoria, B. C, Saunders 

 (1901, p. 436). 



Halosaccion fucicola f. radicans. Unalaska, Alaska, Rwprecht 

 (1851, p. 293). 



Halosaccion fucicola f. decapitation. Kadiak Island and Sitka, 

 Alaska, Buprecht (1851, p. 293). 



Fuctis saccatus. Nootka Sound, B. C, Turner (1819, p. 104). 



Halosaccion Hydrophora. Puget Sound, Bailey and Harvey 

 (1862, p. 162); Esquimalt, B. C, and Strait of Juan de Puca, 

 Harvey (1862, p. 162). 



Halosaccion fir mum. St. Lawrence Island, Alaska, Kjellman 

 (1889, p. 29); Cook Inlet, Alaska, Saunders (1901, p. 436). 



Dumonfia fucicola. Sitka, Alaska, Postels and Buprecht ( 1840, 

 p. 19). 



Dumontia decapitata. Sitka, Alaska, Postels and Buprecht 

 (1840, p. 19). 



The specimens examined by us may be reported as follows : — 

 On rocks and algae in the literal zone. Agattu Island, Alaska, 

 Townsend, No. 5758!; west shore of Amaknak Island, Bay of 

 Unalaska, Alaska, W.A.S. and A.A.L., No. 3266!; Bay of 

 Unalaska, Alaska, W.A.S. and A.A.L., Nos. 4051!, 4061!; 

 Harvester Island, Uyak Bay, Kadiak Island, Alaska, W.A.S. 

 and A. A. L., No. 5115! ; St. Paul, Kadiak Island, Alaska, W.A.S. 

 and A.A.L., No. 5147! ; Yakutat Bay, Alaska, Rev. Albin John- 

 son. No. 5704!; Port Renfrew, B. C, Tilden, No. 511!, under 

 H. fucicola, Butler and Policy, Nos. 10, 105; west coast of Whid- 

 bey Island, Wash., K.L.G., Nos. 4!, 285!; San Juan Island, 

 Wash., K.L.G., 108!, Tilden, No. 242!, under Adenocystis Les- 

 son a. 



Halosaccion glandiforme, in our extended sense, ranges from 

 the Sea of Oehotsk to the east and southeast along the coasts of 

 North America down to the northwestern coast of Mexico. The 

 typical form is a large finger-shaped sack filled, when fresh, with 

 water. There are microscopical openings at the tip or near it so 

 that when one compresses the sack below, the water spurts out 



