602 University of California Puhlications in Botany [Vol. 8 



Laminaria cuneifolia f. angusta S. and G. comb. nov. 



Holdfast of distinct branched hapteres; stipe short, 1-2 cm. long, 

 terete or slightly flattened above, with mucilage ducts closely crowded 

 in a circle just beneath the periphery, elongated radially in section 

 view, surrounded by conspicuous secreting cells ; blade undivided, 

 15-45 cm. long, 3-5 cm. wide, cuneate at the base, usually more or less 

 falcate, with a well defined row of bullae within each margin ; mucilage 

 ducts in the blade large, about one-third of the way between the sur- 

 face and the distinctly marked off, wide medulla; color very dark 

 brown, turning black on drying. 



Growing abundantly on rocks in the upper sublittoral belt. 

 Reported at Cape Flattery and along the w^est coast of Whidbey 

 Island, Washington, and doubtless at other localities in the lower 

 Puget Sound region and farther north. 



Setchell and Gardner, Alg. N.W. Amer., 1903, p. 257; Collins, 

 Holden and Setchell, Phyc. Bor.-Amer. (Exsicc), no. LXXXV (both 

 siib L. hullata). 



Laminaria cuneifolia f. subsimplex S. and G. comb. nov. 



Hapteres well developed; stipe short and stout, 4-8 cm. long, 4-6 

 mm. diam., terete below, somewhat compressed above, with mucilage 

 ducts forming a circle just beneath the periphery; blade thick and 

 somewhat coriaceous, 50-150 cm. long, 10-15 cm. wide, plane in some 

 specimens, particularly the younger ones, with a distinct row of 

 bullae extending for some distance above the base within each margin, 

 entire or split from a half to a third of the distance to the base into 

 two, or at most a few, broad segments, with large mucilage ducts 

 situated about halfway between the surface and the distinctly marked 

 off medulla ; color very dark in old specimens. 



On rocks in the upper sublittoral belt. Common in the lower Puget 

 Sound region. 



Setchell and Gardner, Alg. N.W. Amer., 1903, p. 257 (sul) L. 

 hullata). Laminaria hidlata Collins, Holden and Setchell, Phyc. Bor.- 

 Amer. (Exsicc), no. XXIX. 



