206 KJELLMAN, THE ALGiE OE THE ARCTIC SEA. 



in the Norwegian Polar Sea this is not the case according to Kleen. On the coast of 

 Finmarken it is profusely furnished with receptacles during the month of July. In 

 August and at the beginning of September I found only sterile specimens. 



Geogr. Distrib. The present species is known only from the Norwegian Polar Sea 

 and Baffiu Bay. Its maximum of frequency is certainly on the north coast of Norway. 

 The northernmost locality where it is known with certainty to live is Gjesvajr on the 

 north coast of Norway about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Nordlanden pretty common and abundant; 

 Tromsö amt at Tromsö and Renö common and abundant; Finmarken common and very 

 abundant at Maasö, Gjesvajr, and Öxfjord. 



Bafjin Buy. the west coast of Greenland at Julianeshaab and Godhavn, according 

 to specimens in the herbarium of the Copenhague Museum '). 



Fucus mi donens is De la Pyl. 

 V\. Terre neuve p. 90. 



Descr. Fucus miclonensis J. G. Ag. Spetsb. Alg. Till. p. 39. 



» disticlius var. miclonensis Kleen, Nordl. Alg. p. 30. 

 Fig. » miclonensis tab. uostra 19, lig. 1, 2. 



Remark on the species. In my colluctions from Finmarken there is a number of 

 specimens of a form of Fucus, with which the above-quoted description of F. luicio- 

 vensis by Agardh agrees so completely as to leave no doubt that they are to be re- 

 ferred to this species. I have had such a specimen delineated on tab. 19, tig. 1. With 

 these specimens that plant agrees very well which Kleen has brouglit home from Nord- 

 landen in great number and named F. dictichus var. miclonensis in his account of the 

 marine vegetation of that region. One of his specimens is figured in tab. 19 tig. 2. 

 In my opinion it is to be regarded as a distinct species, approaching certainly nearly 

 F. Jilifo>'inis, but difiering from it by spreading or even patent segments, considerably 

 broader ■ — even 3 mm. broad — upper segments, more solid structure, shorter, coarser, 

 and less swollen receptacles, Avhich are often united in pairs at the base and in that 

 case widely distended from one another, and by large, very patent scaphidia. 



That Fucus from Spitzbergen and Greenland which J. G. Agardh has distributed 

 under the nanie of F. miclonensis does not, as far as I can judge, belong to this species 

 as described by himself, but is to be considered as a form of F. evanesceiis, according 

 raost nearly with its f. angiista. This form of Fucus is distinguished from F. miclo- 

 nensis as understood by me, by considerably tirmer consistency, less distinct costa in 

 the upper segments, more numerous and more distinct cryptostomata, and above all 

 by smaller and less swollen receptacles which differ less in shape from the sterile seg- 

 ments and reach the same height as these. The scaphidia are small and numerous. 

 The plant becomes very black in drying, whilst F. miclonensis, if handled carefully in 



') It is by some mistakc that Fahlow reports this species as taken at Spitzbergen; New Engl. Alg. p. 102. 



