vol. li Setchell- Gardner. — Algce of Northwestern America. 261 



(1851. p. 232), Greeley and Snodgrass, No. 5806! (Setchell, 

 1899. p. 591). 



The present species resembles very strongly L. Sinclairii 

 (Harvey) Farlow of the Central Calif ornian coast in its habit 

 and in its possession of a creeping rhizome, but differs from it in 

 not having mucilage ducts in the stipe. 



Laminaria saccharina (L.) Lamouroux. 



Forms of the true L. saccharina are fairly abundant on the 

 coast froin Puget Sound to the Alaskan Peninsula. It is not 

 known to enter the Bering Sea or to extend to the southward 

 of Cape Flattery in Washington, a distribution which is puzzling 

 from what we know of the species on the coasts of Europe or 

 those of Eastern North America. The various older and modern 

 references are fairly readily placed under the forms described, 

 except the plants of Harvey (1862, p. 166) collected at 

 Esquimalt, B.C. 



Laminaria saccharina f. linearis J. Agardh. 



On wood and stones, upper sublitoral zone. Unga, Alaska, 

 J. B. Downing. Xo. 5788!; Uyak Bay, Kadiak Island, Alaska, 

 W.A.8. and A.A.L., Xo. 5136! ; Kukak Bay and Prince William 

 Sound. Alaska, Saunders ' 1901, p. 429, as to forma b only) ; Orca, 

 Alaska, W.A..S'. and A.A.L., Xo. 5154!; Sitka, Alaska, Postels 

 and BuprecM (1840, p. 10, as to f. cuneata only), W A.S. and 

 A.A.L., Xo. 5202! ; west coast of Whidbey Island, Wash., 

 X.L.G.. Xos., 160!, 305! 



Under this name we have included the narrower, thicker, less 

 ruffled form with few or no bulla?. It seems to be a form of the 

 colder waters or the colder seasons. 



Laminaria saccharina f. membranacea J. Agardh. 



On rocks and stones, or at times on other large alga?, in the 

 upper sublitoral zone. Douglas, Alaska, Eldred Jenne, No. 

 649!: Sitka, Alaska, Postels and BuprecM (1840, p. 10, under 

 L. latifolia); Fairhaven, Wash., N.L,G., No. 75!; Friday 

 Harbor, San Juan Island, Wash., N.L.G., No. 304!; Port 

 Orchard, Kitsap County, Wash., Tilden, No. 240! 



Both the preceding forms are included under the f . normalis 



