KONGL. SV. VET. AKADEMIENS HANDLINGAK. BAND. 20. N:0 5. 291 



This form much resembles Phycoceris racemosa KiJTZ. (Tab. Phyc. 6, tab. 26) in ha- 

 bit. In structure it coincides very closely with E. complanata var. suhsimplex Aresch. 

 (Ahln. Enterora p. 29), but it has somewhat narrower and less regular cells with some- 

 what more abundant endochrome. 



Habitat. A litoral alga, attached to stones, growing scattered both on exposed 

 and sheltered coasts. On the north coast of Norway it bears zoospores (garnets?) in 

 August and September. 



Geogr. Distrih. Known only from the Atlantic region of the Polar Sea. Its 

 northernmost point is Maaso about Lat. N. 71°. 



Localities: The Norwegian Polar Sea: Finmarken at Maaso and Talvik, loca 

 and scarce. 



Enteromorpha minima Nag. 



in KuT2S. Spec. Alg. p. 482; Cfr. Ahln. Enterom. p. 48. 



f. glacialis Kjellm. 



in WiTTR. et NoRDST. Alg. exsicc. N:o 43. 

 Descr. Enteromorpha minima f. glacialis Kjellm. Algenv. Murm. Meer. p. 50. 

 Eissicc. » » » » » in Wittr. et Nordst. 1. c. 



Habitat. This species, wherever hitherto found, formed dense, rather extensive 

 mats within the litoral zone on flat rocks that sloped towards the sea and were moist" 

 ened at low tide by snow- and ice-water dropping down. 



Locality: The Murman Sea: Besimannaja Bay on the west coast of Novaya 

 Zemlya. 



Enteromorpha tubulosa Kutz. 



Tab. Phyc. 6, p. 11. E. intestinalis / tubulosa KtJTZ. Spec. Alg. p. 478; Cfr. Ahln. Enterom. p. 49. 



f. pilifera Kutz. (Ahln.). 



1. c. p. 60; Enteromorpha pilifera KiJTZ. Tab. Phyc. 6, p. 11. 

 Descr. Enteromorpha tubulosa b pilifera Ahln. 1. c. 

 Fig. » pilifera KiJTZ. 1. c. t. 30. 



Locality: E mart groenlandico according to Wokmskiolu in the herbarium of the 

 Copenhagen Museum. 



Enteromorpha raicrococca Kutz. 

 Tab. Phyc. 6, p. 11. 



f. typica nob, 

 Descr, Enteromorpha micrococca Ahln. Enterom. p. 46. 

 Fig. » » KiJTZ. 1. c. tab. 30. 



» » Ahln. 1. c. t. 1, fig. 7. 



