Contribution. t. 



171 



Distrilution: Found at Kielmo in Sydvaranger. rare, 

 and in Trifanshulen in the neighbourhood of Elvenæs in Syd- 



varanger, scarce 



\ 



Sxibser. II. Schizomycetes Cohn 



Beitr. z. Biol. d. Pflanz. 



Fam* Coccaceæ Zopl 



Spaltpilze p. 46. 



Gen, Leptothrix Klitz. 



Pliyc, gener. p. 197. 



Leptotlirix subtilissima Hansg. 



in lit. 



F 



„Fåden init einem Ende festsitzend, selir diinn, etwa 0.3 fj. diok, 

 meist nur 1 bis 2 a lang, scUener langer mit undeutlicber Gliederimg, 

 farblos, geråde oder leidit gekrummt, frei aufrecht oder an der Oberflache 

 anderer Meercsalgcn liegendj einzeln oder gehåixft". 



The species occurs on Edocorptis, Clado:p1iora, Lijnglya 

 and other algæ within the litoral zone. 



Distrihution: Found at Vardo, Kiberg and Bngonæs, 



scarce, 



Leptothrix arctica nob. 



L. adnata, solitaria velsubpenicillata, fiexuoso-curvata, dilute 



viri- 



dis, apicein versus poullo attenuata, eire. 300—800 /i longa, 2.5— i /x 

 crassa, cellulis duplo brevioribus. 



The species much resembles Leptothrix rigidula Ktitz. 

 Tab. Phyc. 1, t. 59 in habit, but it is a coarser plant, and 

 the cells are shorter than by that species, their length is 



■ h 



generally half the diameter. The plant is litoral as well as 

 sublitoral In the former case I met with it on severallar- 

 ger algæ, as Cladophora glaucescens, Mhmoplea, Ptilota pec- 



