174 
KJELLMAN, THE ALG OF THE ARCTIC SEA. 
The White Sea, probably scarce. 
The American Arctic Sea, see Harvey |. c. 
Baffin Bay: the west coast of Greenland, according to Lynepyy and specimens in 
the collections of the Copenhague Museum without any special locality being noted. 
Ptilota pectinata (Guwny.) nob. 
Fucus pectinatus Gunn. Fl. Norv. 2, p. 122. 
f. typica. 
Descr. Ptilota serrata J. G. Ac. Hpier. p. 76. 
Fig. » plumosa var. serrata Kurz. Tab. Phye. 12, t. 55. 
Eesicc.  » serrata KJgLLM. in Aruscu. Alg. Scand. exsicc. N:o 406. 
f. integerrima Rupr. 
Alg. Och. p. 334. 
Descr. Plumaria pectinata var. integerrima Rupr. 1. c. 
Fig — Ptilota pectinata f. integerrima tab. nostra 15, fig. 1. 
f. litoralis nob. 
f. laxe ceespitosa, minuta, 3—4 cm. alta, inferne diametro maximo 300—380 w.; ramis confertis, alteris 
lanceolato-falciformibus, parece serratis vel integris, altecris multo brevioribus, linearibus, simplicibus vel infra 
apicem parce et irregulariter pinnulate-ramulosis. Tab. 15, fig. 2—5. 
Syn. Fucus plumosus y. tenerrimus We. Fl. Lapp. p. 501. 
Ptilota plumosa (@. asplenioides Lynas. Hydr. Dan. p. 38. 
» 
» 
serrata J. G. AG. Spetsb. Alg. Bidr. p. 11; Gronl, Alg. p. 111. 
fo) 
Post et Rupr. Ill. Alg. p. II, sec. Gon, Algenfl. Weiss. Meer. p. 44. 
EE 
Croat, Fl. Dise. p. 460. 
Dicktz, Alg. Sutherl. 1, p. 143; Alg. Cumberl. p. 239: 
Haron, List. p. 44. 
@. arctica, Gost, |. c. 
Harv. Ner. Am. 2, p. 222. 
KsELLM. Vinteralgv. p. 64; Spetsb. Thall. 1,-p. 26; Algenv. Murm. Meer, p. 22; 
Kariska hafvets algv. p. 22. 
KueEN, Nordl. Alg. p. 20. 
ZELLER, Zweite d. Polarf. p. 85. 
Remark touching the name and the forms of the species. It seems to be beyond a 
doubt that the plant figured and described by Guynerus under the name of Mucus 
pectinatus 1. c. and tab. 2 fig. 8, is the same that goes at present commonly under the 
name of Pt. serrata Kirz. For this reason I have adopted that denomination. Gost 
denies its right to be regarded as a separate species, and I must allow that among the 
specimens, certainly several thousands in number, that have passed between my hands, 
there have been some few that were allied in character both to Pt. plumosa and Pt. 
pectinata, although it was scarcely ever difficult to decide to which of these species 
they ought with more reason to be referred. Having in general found Pt. pectinata 
independent, I do not hesitate to let it remain a separate species. 
