M. I* oslie. Oontribution II. 



55 



Exsicc. 



?> 



Syn. Diplonema percnrsum Kjellin. N. Isn. Algfl. p. 371. 



w confervoideum Fosl. Contrib. I, p. 126. 



This species generally lives in protected places, but it 

 sometimes also appears in exposed localities epiphytic on 

 other algæ. Thus I found it on Spongomorpha living in rock- 

 pools at or a little above high- water raark in a much ex- 

 posed locality. The sped mens were however small and some- 



* 



what stunted. 



\ 



Chætomorpha septentrionalis Fosl. 



Om nogle nye arkt. havsalg. p. 10. 

 Beser. Chætomorpha septentrionalis Fosl. 1. c. et De-Toni, Syll. Alg. I 



p. 270. ' 



„ Wittr. et Nordst. Alg. exsicc. Nr. 416. 



At Pollen in Lyngen (Tromo amt) I found on a depth 

 of about 10 fathoms a solitary individual of a Chætomorpha 

 which is most nearly related to the above quoted species. 

 It is about 25 cm. long, with the cells, especially the zoo- 

 sporiferous ones, mostly shorter, not seldom only 1V 4 — l 1 /» 

 times longer than broad and about 90 \l thick, but otherwise 

 agreeing well with the barren specimens from Gjesvær tåken 

 on a depth of 8—12 fathoms. Cp. Fosl. 1. c. I also found 

 at Tovik in the southein part of Tromso amt on a depth of 

 about 2 fathoms a single specimen which is thicker but 

 otherwise coincides with the specimen from Lyngen. 



Pringsheimia scutata Eke. 



Algenfl. p. 81. 

 Descr. rringsheimia scutata Uke. Lo. 



Fig. 



■n 



Atlas, t. 25. 



I found this species in large number on scattered in- 

 dividuals of Polysiphonia fastigiata growing in an enclosed 

 sound at Svinor in the neighbourhood of Lindesnes. 



Calothrix crustacea (Schousb.) Thur. 



in Bom. et Thur» NoU Algol I, p. lo. 



