248 University of California Publications. [botany 



These plants are the widest we have ever seen or found men- 

 tioned. This form grows in abundance on the coast of Central 

 California, but while reaching a considerable width, the plants 

 are seldom over 8 or 10 centimeters wide. 



Family DICTYOSIPHONACE^. 



Dictyosiphon hippuroides (Lyngbye) Kuetzing. 



On rocks, lower literal zone. St. Paul Island, Alaska, 

 Greeley and Snodgrass\ (Setchell, 1889, p. 591); near Iliuliuk, 

 Unalaska, Alaska, W.A.S. and A. A.L.I 



Dictyosiphon fceniculaceus (Hudson) Greville. 



On stones, middle and lower Literal zone. Alaska, Harvey, 

 (1872, p. 463) ; west shore of Amaknak Island, Bay of Unalaska, 

 Alaska, W.A.S. and A. A. L., No. 3275! ; Unga, Alaska, A.A.L., 

 No. 5049! ; Shumagin Islands, Alaska, Saunders, (1901, p. 422); 

 Uyak Bay, Kadiak Island, Alaska, W.A.S. and A.A.L., No. 

 5091! ; Prince William Sound, Alaska, Saunders, (1901, p. 422) ; 

 Orca, Alaska, W.A.S. and A.A.L., No. 5163!; Glacier Bay, 

 Juneau, Wrangell, and Annette Island, Alaska, Saunders, 

 (1901, i). 422). 



Dictyosiphon foeniculaceus f. Americanus Collins. 



Golofnin Bay, Alaska, It. G. McGregor, No. 5670! 

 Dictyosiphon Chordaria f. gelatinosa Stroemfelt. 



On rocks or mud, in the middle and lower literal zone. 

 Dutch Harbor, Amaknak Island, Bay of Unalaska, Alaska, 

 A.A.L., No. 5008!; Friday Harbor, San Juan Island, Wash., 

 X.L.G., No. 212! 



Family ELACHISTACEyE. 



Elachista lubrica Ruprecht. 



On RJiodymenia pahnata in the literal zone. Prince William 

 Sound, Alaska, Saunders (1901, p. 423); Orca, Alaska, ir..4.»S'. 

 and A.A.L., No. 5156! ; Yakutat Bay, Alaska, Saunders (1901, 

 p. 423). and in Collins, Holden and Setchell, P. B.-A., No. 828!, 

 Rer. Albin Johnson, No. 5717!; Glacier Bay and Wrangell, 

 Alaska, Saunders (1901, p. 423). 



