122 M. Foslie. 



Exsicc. Enteromorpha intestinalis var. pumila Aresch Alg. Scand. exsicc. 



Nr. 268. 

 Syn. Ulva intestinalis Gunn. Fl. Norv. 2. p. 120. 



„ corapressa Wg. Fl. Lapp. p. 508; ex parte. 

 „ intestinalis Sommerf. Suppl. p. 186. 



This species generally appears under the forms at- 

 tenuates and genuina, yet the latter less common than the for- 

 mer. The form comucopice I have only seen at Mehavn, 

 Vardo and Yadso. At the last mentioned place I met with 

 a very slender form of f. attenyata. The present plant is 

 litoral and lives on sandy localities, often at the mouths of 

 streamlets, or on rocks and in rock-pools in the upper part 

 of the zone, more seldom epiphytic on other algse, as Fuci. 

 It occurs on open as well as sheltered coasts. It has been 

 collected with zoospores in June and July, at West-Finmar- 

 ken also in August and September. 



Distribution: Pretty common along the whole coast, at 

 several places abundant, as Mehavn, Gamvik and Vadso. 



Enteromorpha compressa (L.) Ahln. 

 Enterom. p. 31; Ulva compressa L. Spec. Plant, p. 1163. 



f. typica. 

 Descr. Enteromorpha compressa Ahln. 1. c. 

 Fig. „ „ Kiitz. Tab. Phyc. 6, t. 38. 



Exsicc. „ „ Le Jol. Alg. mar. Cherb. Nr. 142. 



f. racemosa Ahln. 

 1. c. p. 33. 

 Descr. Enteromorphe compressa c. racemosa Ahln. 1. c. 

 Exsicc. „ ramulosa Aresch. Alg. Scand. exsicc. Nr. 226. 



Syn. Ulva compressa Wg. Fl. Lapp. p. 508; ex parte. 

 „ „ Sommerf. Suppl. p. 186. 



The form of f. racemosa I met with at East-Finmar- 

 ken somewhat differs from the above quoted one distributed 

 by Areschoug. The subelongated main-thread is densely 

 clothed with long and almost capillary branches, which so- 



