Coiitributiou. 1. 



125 



monly 3—5 cm. long. The frond is until 5 mm. broad in 

 the middle part, but in general much narrower, not seldom 

 almost filiform, and from there partly attenuated downwards 

 as well as iipwards, partly rather obtuse at the summit. It 

 is freq^uently simple, but sometimes it bears some few, short, 

 simple and filiform branches in the lower part of the frond. 

 In this part the cells are, seen from the surface, 4—5 — 6 

 angulated with rather sharp corners and ordered in more 

 or less regnlar series. In the upper part the cells are 

 smaller, often with more rouiided corners and not seldom 

 without any order. In a cross section they are squarish or 

 vertically rectangular, mostly with ronnded corners. 



The species is litoral, occurring on rocks or in clefts 

 of rocks at high-water mark. It has only been found on 

 open coast. In the beginning of Angust it was furnished 



with zoospores. 



Distrihution: Found at Berlevaag and Havningberg, 



F 



at both places scarce. 



Enteromorpha tub u losa Ktitz. 



Tab. Pliyc. 6, p. il; E. intestiiialis y tubulosa Ktitz. Spee. Alg. p. 



478. 



Descr, Enteromorpha tubulosa Abln. 1. c. p. 49; excl. var. 



Fig, 



9f 



» 



M 



Kiitz. Tab. Phyc. 6, t. 33. 

 Ahlu. 1. c. fig. 9. 



mark. 



Litoral, growing in rock-pools at high-water 

 Specimens with zoospores have been tåken in July. 



JDistribuUon: Only found al Bugonæs in Sydvaranger, 



pretty plentiful biit local. 



Enteromorpha prolifera (Mull.) J. G. Ag. 



Alg. Syst. 3, p- 139; Uiva prolifera Mlill. Fl. Dan. t. 763, fig. 1. 

 Beser, Enteromorpha prolifera J. G. Ag. 1. c. 



Fig, 



» 



» 



tubulosa b. pilifora Ahln. Enterom. p. 50. 

 pilifcra Kiitz. Tab. Phyc. 6, t. 30. 

 prolifera J. G. Ag. 1. c. t. 4, fig. 103 --104. 



