336 University of California Publications. [botany 



reproductive organs are more fasciculate. The cystooarps too, in 

 the nest species, are calcarate, while those of 0. Lyallii are ecal- 

 carate. We have found old and complete specimens of 0. Lyallii 

 with a thickened stipe-like portion below, but even here, there is 

 little midrib and the upper portion is entirely plane. Miss 

 Tilden's specimen from San Juan Island probably belongs to this 

 species, but may perhaps, judging' from its color, more properly 

 be placed under the next. Certainty it has nothing in common 

 with Laurencia Grerilleana under which she has placed it. 



Odonthalia Kamtschatica (Ruprecht) J. Agardh. 



St. Paul Island, Alaska, Ruprecht (1851. p. 214, under Ato- 

 maria Kamtschatica); Sannak Island, Alaska, Turner (1886, 

 p. 85) ; Unga, Alaska, A.A.L., No. 5051! ; Kukak Bay and Yak- 

 utat Bay, Alaska. Saunders (1901, p. 438) ; Port Renfrew, B. C, 

 Butler and Polley, No. 102! ; Vancouver Island, B. C, and Port 

 Angeles, Clallam County, Wash., G. W. Lichtenthaler. 



We have quoted the various published mentions of the occur- 

 rence of this species within our territory and have added two 

 localities whence we have examined specimens. We feel much 

 doubt in referring the specimens to this species; one is a sterile 

 plant and, while the other has stichidia, the chief differences 

 between them and the specimens from Whidbey Island, which we 

 refer fairly confidently to the preceding species, is in the color 

 (these being a dark red and those being a light brownish tint) and 

 a tendency on the part of the specimens we refer to the present 

 s]ici'ies to have a fairly prominent midrib in the lower portion of 

 the frond. The figure of 0. angustifolia Postels and Ruprecht 

 (1840, pi. 27), which Ruprecht says is of this species and not of 

 0. angustifolia Suhr, shows a sterile plant with a distinct midrib 

 to very near the tips of the branches. 



Odonthalia semicostata (Merteus) J. Agardh. Plates 26, 27. 



On rocks in the upper sublitoral zone. Victoria, B. C, 

 Tilden, No. 312!, under Odonthalia dentala; west coast of 

 Whidbey Island, Wash., X.L.G., Nos. 61! , 161a! , and in Collins, 

 Holdeu, and Setchell, P. B.-A., No. 941! 



A common species along the west coast of Whidbey Island 

 and found cast ashore the vear round. It seems to fruit about 



