Contribution. I. 163 



Calothrix parietina (Nag.) Thur. 



Nostoch. p. 881; Schizosiphon parietinus Nag. in Kiitz. Kpec. Alg. 



p. 327. 

 Dcscr. Calothrix parietina Born, et Mali. Kev. Nost. 1, p. 366. 

 Fig. Mastichonema csespitosum Kiitz. Tab. Phyc. 2, t. 46. 

 Scliizosiphon salinus Kiitz. 1. c. t. 47. 

 „ decoloratus Kiitz. 1, c. 



Exsicc. Calothrix parietina Wittr. et Nordst. Alg. exsicc. Nr. 659 3t7.">l. 



This species occurs scattered among other smaller al- 

 gse on exposed rocks at high-water mark. 



Distribution: Only found at Kjelmo in Sydvaranger, 

 scarce. 



Gen. Dichothrix Zanard. 

 Enum. p. 89. . 



Dichothrix gypsophila (Kiitz.) Born, et Flah. 

 Rev. Nost. 1, p. 377; Schizosiphon gypsophilus Kiitz. Phyc. gener. 



p. 234. 

 Dcscr. Dichothrix gypsophila Born, et Flah. 1. c. 

 Fig. Schizosiphon Kiitzingianus Kiitz. Tab. Phyc. 2, t. 50, 

 „ cinctus Kiitz. i. c. t. 51. 



„ gypsophilus Kiitz. 1. c. 



Exsicc. Dichothrix gypsophila "Wittr. et Nordst. Alg. exsicc. Nr. 859. 



In the only place where I met with this species it 

 grew on smaller stones in a shallow and somewhat muddy 

 and sheltered lagoon at high-water mark, partly dry and 

 partly submersed, forming somewhat gelatinous, rough layers 

 of a dark yellow-brown colour. 



Distribution: Only found at Bugonses (Bugo) in Syd- 

 varanger, local but abundant. 



Fam. Nostocacese (Kiitz.) Thur. 



Nostoch. p. 6; Kiitz. Phyc. gener. p. 203; lim. mut. 



