510 



Fig. 104. Acrosiphonia flagellata Kjcllm.V Compare lext. 10:1. 



187. A. incurva Kjellm. 



It seems to me that a few speciraens in my material agree well 

 with Kjellman' s description. They have hooked branches, bul 

 no spinal ones. The chromatophore is rather ftnely reticular with 

 numerous pyrenoids. The fertile cells in my specimens occur singly 



