become narrower upwards (below the apex 7 — 20 fx) and downwards (at 

 the base 7 --23 fx) and are more or less furnished with rhizoids at the 

 base. The specimens had unilocular and plurilocular sporangia, and some- 

 times both kinds of sporangia occurred in the same filament. The spor- 

 angia are both terminal and lateral on the filaments. The plurilocular 

 sporangia are usually about 23 tx thick and attain sometimes a length of 

 108 fx. they have always a shorter or longer stalk, consisting of one to 

 five or more cells. The unilocular sporangia, hitherto unknown in this 

 form, also usually have a stalk consisting of 1—3 cells, but are occasion- 

 ally sessile; their shape is obovate or ovate, the length 17—32// and 



Fig. 15. 



Eciocarpus confervoides (Roth) Le Jol. f. pygmœa (Aresch.) Kjellm. (126:1.) 

 a the lowest part of the filament with rhizoids and a unilocular sporangium; 

 b a portion with plurilocular sporangia: c, d portions of filaments having both 

 unilocular and plurilocular sporangia; e a fragment of a filament with plurilocular 

 sporangia showing varying length of the stalk. 



the breadth 14 — 22//, and sometimes they are as long as broad. I have 

 now and then observed, that one or more of the upper lateral branches 

 grow long and attain the same thickness as the main axis, which conse- 

 quently becomes displaced. Such specimens form evidently the transition 

 to f. typica. 



f. typica has been found in : 



E. I cel. Berufjöröur; Eskifjöröur (Strömfeit); Seyöisfjöröur. 



N. Icel. Grjötnes (CO.); Eyjafjöröur. 



NW. Icel. Hrütafjöröur ; Isafjöröur (CO.). 



SW. Icel. Melar, Reykjavik. 



S. Icel. Eyrarbakki, Vestmannaeyjar. 



