124 



' -M. FosHo. 



Litoral, growing in rock-pools between tides. 

 Distribufion: Only found at Sværholt, rare, 



Enteromorpha micrococca Klitz. 



Tab. Phyc. 6, p. 11. 



f. obeonica J. G. Ag. 



Alg. Syst. 3, p. 123. 

 Descr. Enteromorpha micrococca a obeonica J. G. Ag. 1. c. 



f. tortuosa J. G. Ag. 



]. c. 

 Descr, Enteromorpha micrococca § tortuosa J. G. Ag. 1. c. 



r 



Eig. „ n Kiitz. Tab. Phyc. 6, t 30. 



Syn. Enteromorpha micrococca Ahln. 1. c. p. 46, fig. a. b. 



Ulva intestinalis var. nana Sommcrf. Suppl. p. 186, 



This spedes is litoral and occurs on rocks or in clefts 



■ of rocks at high-water mark. It appears to prefer op en and 



exposed coast, but it also is to be found in rather shelte- 



r 



red localities. At Kjelmo I met witli very slender, almost 



r 



tbread-narrow specimens of f. obeonica. This form becomes 

 10 cm. long\ The plant has been tåken with zoospores in 

 the later half of Aukrust. 



Disiribution: Pretty common everywliere, except in the 

 inner part of the deep fjords, and at some places abnndant. 

 The most common form is f. tortuosa. 



Enteromorpha microphylla nob. 



E. thallo simplici. vel inferno sparsim ramoso, utrinque attenuato, 

 tiibuloso-coiDpresso, sæpe tortuoso, 20—25 p. crasso; celhxlis 4 — 5 — 6 an- 

 gularihas pliis minusqua seriatim ordinatis, in scctionc transversale snb- 

 quadratis vel roctangularibus. Tab. 2, £^-. 10—16. 



The name above is given provisionally, as I am not 

 able to ref er the species to any known form. It resembles 

 E, micrococca in habit, but in structure it is plainly disting- 

 uished from that species. On the other hand it reminds of 

 ^ejtain forms of JE', inte^timMs, Jt is a small plant, cam* 



