410 



Some specimens from Strænder (Ost.) which I must regard as 

 belonging to the typical form bore quantities of plurilocular as 

 well as unilocular sporangia on the same plant, sometimes even 

 intermixed on the same branch; but either one or the other kind 

 greatly predominated on the same branch, and either exclusively 

 unilocular or plurilocular sporangia were frequently met with. The 

 unilocular sporangia often occurred in great abundance and were 



Fig. 70. Ectocarpus fasciculatus (Griff. Harv. var. refracta (Kiitz.) Ardissone. 

 a and b 110 : 1; c 270 : 1. 



placed quite close together so much so that they frequently came 

 in contact with each other, being even closer than is shown in 

 the accompanying figure (fig. 71, a). Such piants bore considerable 

 resemblance to Ectocarpus pycnocarpus Rosenv. (Gronl. Havalg., 

 p. 886). The unilocular sporangia were about 65 {* long and about 

 40 ,u broad, of about the same size, consequentlv, as reported by 

 Rosen vinge, and two sporangia on the same cell is also liere 

 sometimes met with, and also a vegetative branch proceeding from 

 beside the sporangium. The main filaments could attain to a 

 thickness of up to 70/*. In tig. 71 is shown a portion of the plant 

 bearing unilocular sporangia (a) as well as a branch bearing 



