264- 



Puget Sound Marine Sta. Pub. 



Vol. 1, No. 25 



2, Laminaria complanata Setchell & Gardner, Algae of N. W. Amer., 



p. 26, under Laminaria saccharina f. complanata. Fig. 19 



Holdfast composed of branched hapteres; stipe two to five dm. long, 

 terete below^ flattened above, without mucilage ducts ; blade about one 

 meter long and 50 cm. wide, ample, ruffled, base decidedly cordate; mu- 

 cilage ducts large and abundant just under the surface cells of the blade. 

 Known only from the sublittoral zone in a few quiet localities. Type 

 locality, Friday Harbor, Washington. 



3. Laminaria Andersonii Farlow, in Anderson Calif. Marine Algae. Zoe. 



2: p. 220. 1891. Fig. 16 



Holdfast composed of branched hapteres; stipe cylindrical or com- 

 pressed at apex, about one to three dm. long, gradually merging into the 



Laminaria saccharina 



Laminaria bullata Laminaria complanata 



PLATE 54 



Figs. 17 and 18. Diagrammatic sketch of plant; X about 0.05. 

 a, Cross section of stipe; X 0.5. 



Fig. 19. Diagrammatic sketch of plant; X about 0.07. a, Cross 

 section of upper part of stipe; b, cross section of lower part of stipe; 

 X 0.5. 



