274 University of California Publications. (botany 



Bay of Unalaska, Alaska, W.A.S. ami A.A.L., No. «3286a!, in 

 Collins, Holden and Setehell, P. B.-A., No. XLV!; Juneau, 

 Alaska, W.A.S. and A.A.L., No. 5194!; Douglas, Alaska, 

 Mdred Jenne, No. 64C! 



Alaria tenuifolia f. amplior Setehell and Gardner f. imv. 



The stipe varies from 10-60 em. in length, is usually stouter 

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

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

 spicuous stalk. They are frequently very large, measuring 45 

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

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

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

 base generally distinctly cordate. 



Attached to piles and boulders near low water mark. Esqui- 

 mau, B. C, N.L.G., No. 645!, W.A.S. , No. 1875! ; near Roach 

 Harbor, San -Bran Island, Wash., N.L.G., Nos. 650!, 651! 



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

 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, Kjellman 

 (1889, p. 37). 



Known to us only from Kjellman 's description and figures. 



Alaria praelonga Kjellman. 



On rocks, lower litoral zone. St. Paul Islaud, Alaska, Town- 

 send, No. 5781!, (Setehell, 1899. p. 592); Harvester Island, Uyak 

 Bay, Kadiak Island, Alaska, W.A.S. and A.A.L., No. 5130! 



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

 seems to be fairly typical, judging from specimens and plate. 

 No. 5130 is said by Kjellman to belong to the same group of 

 species, but differs from typical A. praelonga 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 

 Californian coast, where it appears in several forms. A. r.urtipes 

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

 form-cycle of this species. 



