126 M - Foslie. 



Exsicc. Enteromorpha tubulosa var. pilifera Wittr. et Nordst. Alg. ex 



sice. Nr. 232. 



I have only seen some few specimens of this species. 

 They grew in rock-pools between tides, on open coast. The 

 plant was steril when collected in the middle ot August. 



Distribution: Found only at Svaerholt, rare. 



Gen. Diplonema Kjellm. 



N. Ish. Algfl. p. 371. 



Diplonema conf ervoideum (Lyngb.) Rke. 

 Oatseefl. p. 80; Scytosiphon compressus Lyngb. Hydr. Dan. p. 65, 

 Descr. Diplonema percursum Kjellm. N. Ish. Algfl. p. 371. 

 Fig. Tetranema „ Aresch. Phyc. Scand. t. 2 A. 



Schizogonium nodosum Kiitz. Tab. Phyc. 6, t. 99. 



percursum Kiitz. 1. c. 

 Enteromorpha percursa Kjellm. Algenv. Murm. Mee. t. 1, fig. 25. 

 Exsicc. Tetranema percursum Arescb. Alg. Scand. exsicc. Nr. 125. 



Enteromorpha percursa "Wittr. et Nordst. Alg. exsicc. Nr. 140. 

 Diplonema percursum „ „ * „ „ 844. 



Syn. Ulva percursa Sommerf. Suppl. p. 187. 



Enteromorpha percursa J. G. Ag. Alg Syst. 3, p. 140; ex parte. 

 „ „ De Toni, Syll. Alg. 1, p. 129; ex parte. 



The species is litoral, growing in pools in the upper 

 part of the zone. At West-Finmarken, where I met with 

 it in great abundance, I have seen transitions between the 

 forms typica and crassiuscula Kjellm., and I think they 

 hardly may be regarded as different forms. The few speci- 

 mens that I have seen at East-Finmarken are most nearly 

 to be related to the typical form. Cp. Kjellm. 1. c. 



Distributior. Found at Vardo, Kiberg and Bugonses, 

 very rare. 



Fam. Blastosporacese Jess. 



Monogr. p. 13. 



