274 University of Culifornia Publications. [botany 



Bay of Unalaska, Alaska, ir.A.N. (iikJ A.A.L., No. .328Ga!. in 

 Collins. Holden and Setchell, P. B.-A., No. XLVI ; Juneau. 

 Alaska, ir.A.N. ainl A.A.L., No. 5194'; Douglas, Alaska, 

 EldredJenne, No. 646! 



Alaria tenuifolia t. amplior Setchell and Gai'dnei' f. nov. 



The stipe varies from 10-()() cm. in length, is usually stoutei- 

 than in the last, and is usually as much flattened. The sporo- 

 phylls are broad ovate to oblong and cordate, each with a con- 

 spieuous stalk. They are frequently very large, measuring 4.") 

 cm. in length and 25 cm. in width, with the sorus more or less 

 orbicular and covering only the basal third or fourth. The blade 

 is ample, 20-35 (;m. in width and 100-150 cm. long, with the 

 base generally distinctly cordate. 



Attached to piles and boulders near low water mark. Es(iui- 

 malt. B. C, X.L.G., No. 645!, Tl^A.N., No. 1875! ; near Roach 

 Harbor, San Juan Island, Wash., X.L.G., Nos. 650!, 651! 



Kjellman seems to think that this is distinct from A. (iriitidi- 

 folia J. Agardh, of which it seemed to us to be possibly a smaller 

 form . 



Alaria crispa Kjellman. 



Upper sublitoral zone. St. Lawrence Island, Alaska, KjeUnniii 

 (1889, p. 37). 



Known to us only from Kjellman's description and figui-es. 



Alaria prselonga Kjellman. 



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

 seiid, No. 5781!, (Setchell, 1899, p. 592); Harvester Island. Uyak 

 Bay, Kadiak Island, Alaska, W.A.S. <i,ul A.A.L.. No. 5130! 



The first number (5781) is referred to this species liy us and 

 seems to l)e fairly typical, judging from specimens and plate. 

 No. 5130 is said l)y Kjellman to belong to the same grou]) of 

 species, biit differs from typical A. prwlonga in the shape of the 

 blade which is more abruptly attenuated toward the base and is 

 broader than in the type. This species continues down to the 

 Calif ornian coast, where it appears in several forms. ^4. c it Hi pes 

 Saunders (1901a, p. 561, ])1. 33) seems to us to belong to the 

 form-cycle of this species. 



