642 University of California Publications in Botany [Vol.* 



6. Alaria dolichorhachis Kjellm. 



Stipe 2-7 cm. long, terete ; rhachis 8-20 cm. long, merging abruptly 

 into the costa ; blade short and narrow, 3-7 dm. up to 1 m. long, 4-7 

 cm. wide, often splitting to the midrib into narrow segments, even 

 wearing completely away, lanceolate, with narrowly cuneate base, 

 undulate ; midrib little prominent, 6-10 mm. wide, elliptical in cross- 

 section ; sporophylls 30-50 in adult plants, narrowly linear to spatu- 

 late, more or less undulate, or spirally twisted, 14-25 cm. long, 6-9 

 mm. wide. 



Growing on rocks in the upper sublittoral belt. Known only from 

 a single locality on our coast. Collected by Charles H. Townsend in 

 the service of the U. S. Fish Commission at 'Agattu Island, Alaska, 

 1894. 



Kjellman, Algae Arctic Sea, 1883, pp. 217-220, pis. 20, 21, 25, figs. 

 11-18; Setchell and Gardner, Alg. N.W. Amer., 1913, p. 272; Setchell, 

 Kelps of the U. S. and Alaska, 1912a, p. 162. Alaria crispa Kjell- 

 man, Om Beringh. Algfl., 1889, p. 37, pi. 3, figs. 5-7 ; Yendo, Monogr., 

 1919, p. 89, pi. 5. Alaria taeniata Setchell, Kelps of the U. S. and 

 Alaska, 1912a,, p. 162 (not Kjellm.) (not A. dolichorhachis Collins, 

 Holden and Setchell, Phyc. Bor.-Amer., 1901, no. XLI). 



We have only one collection (of several plants, however), which 

 have the exceedingly long and narrow sporophylls demanded by 

 Kjellman 's figure (loc. cit.). Kjellman 's type, however, does not 

 show these as does his figure and looks more like Kjellman 's A. crispa. 

 We are retaining our plants under A. dolichorhachis, to which species 

 Kjellman thought them closely related yet from which he thought 

 they ought to be separated. 



7. Alaria lanceolata Kjellm. 



Stipe short, 3-6 cm. long, subterete; rhachis short, compressed, 

 thicker than the stipe ; blade lanceolate, short and narrow, up to 1.5 m. 

 long, 10 cm. wide, decurrent, somewhat undulate and plicate, often 

 much worn away ; midrib 4-8 mm. wide, oblong in cross-section ; 

 sporophylls 30-40, linear or linear-lanceolate, cuneate at base, rounded 

 or spatulate apex, short stipitate ; sori covering the basal portion. 



Growing on rocks in the littoral and sublittoral belts. The type 

 locality is Bering Island in the Bering Sea. Kjellman reports it 





