468 



do I consider him justified in dividing his Fucus evanescens into 

 the main groups arcticus, norvegicus, edentatus and dendroides. 



According to my o])inion the alga distributed by Kjell man 

 in Areschoug's Exsicc. No. 401 , corresponds exactly to the plant 



named by Collins Fucus eden- 

 tatus de la Pyl. and distributed 

 by him in Hauck et Richter, 

 Phykotheka universalis No. 119. 

 It likewise bears a fair resem- 

 blance to specimens of Fucus 

 edentatus from Miquelon preserved 

 in onr museum in Copenhagen. 

 The specimens of my Færoese ma- 

 terial which I have referred to for- 

 må edentata agree well with these 

 specimens in Phykotheka and 

 Areschoug's Exsicc, as also with 

 others referred by Kjell man, 

 Ro se uvinge, Foslie and Col- 

 lins to Fucus inftatus var. eden- 

 tata, so that I do not doubt 

 their identity with this form. 

 Lastly, I may mention that when 

 Professor W. G. Farlow was on 

 a visit to Copenhagen I showed 

 him the specimens which I had 

 referred to this form and he pro- 

 nounced them to be good Fucus 

 edentatus. 



Fucus inftatus f. disticha has 

 hitherto been regarded as a 

 distinct species. 1 This is, however, 

 an error, as from observations 

 which I have several times had 

 an opportunity of making in the Færoes, I have arrived at the con- 

 clusion that it is only a plant whose small size is due to its habitat. 

 As shown in fig. 92, very gradual, almost imperceptibly traftsitional 



1 I may mention liere that in »Handbok«, p. 15, Kjellman writes: »This spe- 

 cies is slightly differentiated from the more slender forms ol' Fucus inflatus />' nord- 

 landicus . ( Arien ar svajet begråusad mol Bnare former ol' Fucus inflatus j3 nord 

 Landicus«). 



Fig. 01. Fucus inflatus L. f. edentata de la Pyl. 

 From Nolso. 8 / s : 1. (H.Westergaard del.) 



