Contribution. I. Kj5 



Fam. Oscillariacese (Ag.) Wittr. 



PI. Scand. p. 53; Oscillatorinse Ag. Syst. Alg. p. XXIV; lim. mut. 



Gen. Lyngbya (Ag.) Thur. 

 Nostoch. p. 4; Ag. Syst. Alg. p. XXV; char, emend. 



Lyngbya luteo-fusca (Ag.) J. G. Ag. 



Alg. med. p. 11; Calothrix luteo-fusca Ag. Aufz. Nr. 41. 

 Descr. Lyngbya luteo-fusca Hauck, Meeresalg. p. 505. 



„ „ Farl. New. Engl. Alg. p. 35. 



Fig. n „ Kiitz. Tab. Phyc. 1, t. 88. 



Exsicc. „ „ "VVittr. et Nordst. Alg. exsicc. Nr. 280. 



This species occurs on rocks at high-water mark joint- 

 ly with Calothrix scopulorum and other algse. I have only 

 met with it in exposed places. 



Distribution : Found at Kjelmo in Sydvaranger and at 

 Vardo, scattered and very scarce. (It has also been found 

 at Tromso). 



Lyngbya semiplena (Ag.) J. G. Ag. 



Alg. Med. p. 11; Calothrix semiplena Ag. Aufz. Nr. 40. 

 Descr. Lyngbya semiplena Hauck, Meeresalg. p. 505. 

 Fig. Leibleinia Meneghiniana Kiitz. Tab. Phyc. 1, t. 84. 



I found this plant in a much exposed locality, forming 

 membraneously, often somewhat thick and smooth strata on 

 rocks, or in the margin of rock-pools at high-water mark, 

 and a little higher up. 



Distrilution: Found at Vardo (Horno), local and ra- 

 ther scarce. (The plant has also been collected at West- 

 Finmarken and at Tromso). 



Lyngbya jadertina (Menegh.) Hansg. 



in Oesterr. bot. Zeitschr. 1889, p. 42; Oscillaria jadertina Menegh. 

 see. Rabenh. EL Eur. Alg. 2, p. 89. 

 Descr. Leptothrix jadertina Kiitz. Spec. Alg. p. 265. 

 Fig. „ „ ,, Tab. Phyc 1, t. 65, 



