42 M. Foslie. 



coast. The plant bears tptrasporangia in June, July and 

 August; sporocarps at the end of May, in June, July and 

 August. 



Distribution: Common along the whole coast, at several 

 places abundant but somewhat local. 



Ptilota pectinata (Gunn.) Kjellm. 



N. Ish. Algfl. p. 219; Fucus pectinatus Gunn. Fl. Norv. 2, p. 122. 



f. typica. 



a distans nob. 

 Descr. Ptilota serrata J. G. Ag. Epicr. p. 76. 

 Fig. „ plumosa var. serrata Kiitz. Tab. Phyc. 12, t. 55. 



Fxsicc. „ serrata Aresch. Alg. Scand. exsicc. No. 406. 



($ densa nob. 

 f. laxe caespitosa, 4—8 cm. alta; ramis confertis, parce serratis vel 

 integris. 



f. Kjelhnani nob. 

 Descr. Ptilota pectinata f. litoralis Kjellm. N. Ish. Algfl. p. 219. 

 Fig. „ „ „ „ 1. c. t. 15, fig. 2-5. 



Syn. Fucus plumosus y tenerrinms Wg. Fl. Lapp. p. 501. 



Ptilota plumosa /S asplenoides Lyngb. Hydr. Dan. p. 38. 



It has been shown by Kjellman that Pt. serrata 

 K ii t z. is identic with the plant formerly described and fi- 

 gured by Gunnerus under the name of Pucus pectinatus. 

 And I have lately stated the occurrens of the species in 

 Gunnerus' herbarium under this name, with exception of 

 a single specimen, which belongs to Pt. plumosa. 1 



The form described and named by Kjellman f. lito- 

 ralis also occurs in East-Finmarken. Besides this there is 

 to be found within the litoral region another form, which 



*) There is a considerable misprint in my Krit. fort. p. 103 in referen- 

 ce to the specimens of Pt. pectinata in the herbarium of G u n n e r u s. 

 Instead of „hvoraf et tilhorer den form af Pt. plumosa, der har 

 karakter af begge arter", there must be read „hvoraf et tilhorer 

 Pt. plumosa 11 („one of which belongs to Pt. plumosa"), 



