252 University of California Puhlicafions. [botant 



horizontal, lobed and parencliymatons tlialliis, from which many 

 plants arise. The details are well shown in the series of fig'ures 

 of tliis species on plate 18. The figures are draw^n from speci- 

 mens from near Pacific Grove, California, where one of us had 

 the op])ortnnity of studying a very complete series of stages of 

 growth. But evidence that these plants are not exceptional in 

 this respect lias been obtained elsewhere in California and on the 

 Alaskan Coast. The existence of a similar horizontal thallus in 

 Chordaria jiageUiformis is suspected by us, at least in a moi-e or 

 less reduced state (cf., e.g., No. 482, P. B.-A., C. flagelliforniis f . 

 densa Farlow) and likewise in Myelophycus ccespitosiis Kjellman, 

 (according toKjellman's figure, 1893, f. 1, and Okamura's speci- 

 men, 1899, No. 44). The horizontal thallus of Analipiis fiisi- 

 formis Kjellman seems very similar to that of (\ (ihiffiini. 



Analipus fusiformis Kjelhnan. 



In the lower litoral zone, on rocks. St. Paul Island, Alaska, 

 Greeley and Snodgrass, No. 579.5! , Townsend, No. 5782! (Setcliell, 

 1899, p. 591). 



The plants included under the jn-esent species seem to agree 

 with the description and figures of Kjellman' s i)lant from Bering 

 Island on the other side of the Bering Sea. The basal portion 

 is not very conspicuous, but is as marked as in the type. 

 Kjellman has placed this genus with Ca'pidinm J. Agardh in a 

 special section of the family Chordariaceae on account of the 

 possession of a horizontal thalhis, but, as shown above, this 

 character is found also in Vhordaria ahietina and perhaps in 

 other species as well as in Myelophycus copspitosus Kjellman. 



Family SPOROCHNACE^. 



Carpomitra Cabrerae (Clem.) Kuetzing. 



"Fuca Strait," B. C, Harcey (1862, p. 164). 



Harvey says that Dr. Lyall collected a single specimen of this 

 species in fruit, which agrees well with British specimens. It 

 seems strange that none of the collectors in this region have 

 seen it since. 



