8 University of California Publications in Botany [Vol.10 



(cf. Yendo, 1907, p. 20) which again leaves the status of F. furcatus 

 in doubt so far as the Vancouver Island specimen is concerned. 



These statements of Ruprecht concerning F. furcatus Ag. doubtless, 

 as pointed out by Kjellman (1883, p. 205) and by Borgesen (1902, 

 p. 465), influenced J. Agardh (1868, p. 40) to describe F. furcatus Ag. 

 and F. edentatus De la Pyl. again as separate species. Kleen (1874, 

 p. 29) subordinates F. edcntatus De la Pyl. to F. furcatus Ag. Kjell- 

 man (1883, pp. 204, 205) takes up F. edentatus De la Pyl., accepting 

 J. Agardh's latest interpretation (loc. cit.) of the distinctness of the 

 two species and reduces Kleen 's F. furcatus to synonymy, remarking 

 in this connection : 



The identity of the Fucus in question (F. furcatus) occurring on the north 

 coast of Norway, with Fucus edcntatus De la Pyl. appears to me to be beyond a 

 doubt. I have not, among the great number of specimens from Norway and 

 the northeastern coast of North America examined by me found any that agree 

 fully with Agardh 's figure of F. furcatus. I have thought best to follow J. G. 

 Agardh 's later exposition, regarding F. edcntatus as specifically distinct from 

 F. furcatus Ag. 



Borgesen (1902, p. 465) has made the following disposition of the 

 Fucus forms on the Faeroe Islands. He, with Foslie (1886, p. 109) 

 and Rosenvinge (1893, p. 834). takes up the F. inflatus (L.) Vahl 

 (Fl. Dan., pi. 1127) as the species under which should be placed De la 

 Pylaie 's F. edentatus, and also reduces Kleen 's F. furcatus, mentioned 

 above, to synonymy with F. inflatus, as well as J. Agardh's F. furcatus 

 to synonymy with F. inflatus f. edentatus (De la Pyl.) Rosenvinge. 



Farlow (1881, p. 102) accredits F. furcatus to the New England 

 coast, giving as further distribution, "Northern Europe; Arctic Ocean; 

 North Pacific" and cites no. 108 in Farlow, Anderson, and Eaton's 

 Algae Exsiccatae Americae Borealis. Again (1889, pp. 6, 7) he dis- 

 poses of F. furcatus on the Atlantic coast in the following language : 



The F. furcatus of Marine Algae of New England is without doubt the same 

 as F. edentatus of Newfoundland, formerly united with F. furcatus Ag., of the 

 North Pacific, a species to which was also referred a Fucus of the northern 

 coast of Norway. Later the two species were kept distinct by J. G. Agardh, 

 and Kjellman in the Algae of the Arctic Sea referred the so-called F. furcatus 

 of Norway and Greenland to F. edentatus where our common New England alga 

 also belongs, although the Fucus furcatus of our west coast may perhaps be the 

 same as the original F. furcatus of C. A. Agardh 's Icon. Ined. 



Acceptance of the ideas set forth by Foslie, Farlow, Rosenvinge, 

 and Borgesen would quite effectively eliminate F. furcatus Ag. from 

 the Atlantic and Arctic waters. It remains now either to reestablish 

 or to eliminate this species entirely. I propose to reestablish it with 



