Contribution, I. 



119 



Distribution: Pretty common and plentifixl along the 



whole coast. 



Wittr 



Monostr. p. 49; Uiva Blyttii Arcscli. in Fr. Summ. Yeg. p. 129. 



Beser. Monostroma Blyttii Wittr. 1. c. 



„ » Kleen, Nordi. Alg. p. 42. 



Kjellm. Spetsb. Thall. 2, t. 4, fig. 1—7. 



Fig. 

 Exsicc. 



I» 



n 



„ Aresch. Alg. Sc.and. exsicc. Nr. 423. 

 „ AVittr. et Nordst. Alg. exsicc. Nr. 44. 



Syn, Ulva rigida Sommerf. Suppl. p. 185. 



The species is chiefly litoral, living in rock-pools and 

 fastened to shells (3Iytilus) or other algæ, as OoralUna of- 

 ficinalis and Ilalosaccion raracntaceiini, on open as well as 

 sheltered coasts. Zoospore-bearing specimens have been col- 

 lected in Jnly and Angust. 



Distrihution: Common and abundant almost everywhere. 



Gen, Ulva (L.) Wittr. 



Monostr. p. 9j L. Syyt. Nat. Ed. 10, p. 134C 



Ulva lactuca L. 



8pcc. Plant. 2, p. 1163. 

 Descr, Ulva lactuca Born. et Tliur. Etud. Pliycol. p. 5. 



Fig. 



Exsicc. 



» 



» 



» 



M 



» 



« 



t. 2—3. 



"Wittr. et Nordst. Alg. exsicc. Nr. 141. 



Syn. Ulva latissima Klcen, Nordi. Alg. p. 40. 



■m 

 j 



Litoral, occurring on rocks near low-vater 



liiark. I 



have coUected zoospore-bearing specimens m the beginning 



of August, 



Distribution: Found only at Pasvig in Sydvaranger, 



rare. 



Gen. Euteroiriorpha (Link) Harv. 



?(Ian. p. 173j Link. Ejiist. p. 5; 3 parte 



V 



1^ 



é 



b H 



■> 



