m 



JE^ig. Myrionema 



M. Foslie. 



strangtilans Harv. ]. c. 



'Éxstcc, 



n 



u 



Kiitz. Tab. Phyc. 7, t. 93 

 maculiforme Kiitz. 1. c. 

 vulgare Arescb. Alg. Scand. exsicc. No. 415. 

 „ „ Ilaucli et Iticht. Pliyc. univ. No. 169. 



Syn. Myrionema vulgare Klecn, Nordi. Alg. p. 35. 



Litoral, attached to TJlvaceæ and Cladophora, bearlng 

 zoosporangia in August, 



DisfribuUon: Found at Sværholt and Var do, scarce. 



Fam, Lithodermaceæ Hauck, 



Meeresalg. p. 402. 



Gen. Lithoderma Aresch. 



Obs. Phyc. 3, p. 22. 



^ 



Lithoderma fatiscens Aresch, 



I, q. p. 2B. 



■ ^J ^h *- 



Descr, Lithoderma fatiscens Aresch. 1. c. 



Fig, 



» 



w 



Hauckj j\ToerGsa,]p^. fig. 177. 



Kjellm. N. Ish. A]gfl. t. 26, fig. 6—7. 



The species is sublitoral, growing on stones and lAtho- 

 thamnia on a deptK of 3 — 20 fathoms. Besides typical spe- 

 eimens I at several places also met wltli a pretty large 

 number of small and barren oncs fastened to Lithothamnia. 

 They resemble Lithoderma but are forming numerous small 

 spots on tbe host plant. I think they are referrible to the 



v 



species in question. 



Distribution: Found at Kjelmo, Vadso, Vardo, Mehavn 

 and Lebesby, rather scarce; and at Kjollefjord, local but 

 pretty plentiful. 



Fam. ElacMstaceæ R-ke 



