248 University of California Puhlications. [Botany 



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

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

 California, but while reaching a considerable width, the ])lants 

 are seldom over 8 or 10 centimeters wide. 



Family DICTYOSIPHONACEJ^. 



Dictyosiphon hippuroides (Lyngbye) Kuetzing. 



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

 Greeleii and 8nodgrass\ (Setchell, 1889, p. ")9]); near Iliuliuk, 

 Unalaska, Alaska, T^^^l.N. and A. A.L.I 



Dictyosiphon foeniculaceus (Hudson) (4reville. 



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

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

 Alaska, W.A.8. and A. A. L., No. 3275! ; Unga, Alaska, A.A.L., 

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

 Uyak Bay, Kadiak Island, Alaska, ir.A.N. and A.A.L., No. 

 5091! ; Prince William Sound, Alaska, i^aimders, (1901, p. 422) ; 

 Orca, Alaska, W.A.8. and A.A.L., No. 5163!; Glacier Bay, 

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

 (1901, p. 422). 



Dictyosiphon fceniculaceus f. Americanus Collins. 

 Golofnin Bay, Alaska, R. C. McGregor, No. 5670! 



Dictyosiphon Chordaria f. gelatinosa Stroemfelt. 



On rocks or mud, in the middle and lower litoral 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 ELACHISTACE.^. 



Elachista lubrica Kuprecht. 



On Rhodynienia palinaia in the litoral zone. Prince William 

 Sound, Alaska, Saunders (1901, p. 423); Orca, Alaska, ir.A.N. 

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

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

 Ber. .\lhin riohnson. No. 5717! ; Glacier Bay and Wrangell, 

 Alaska, Saunders {\'^m , p. 423). 



