SPECIAL MORPHOLOGY AND TAXOXOMY OF SARCODIXA 320 



Order 1. ACRASIDA, van TiEciiiE:\i. 

 (Pseiidoplasmodidse of Zopf-Delage) Sorophora, Lister (in part) 



The in(li\-idual amoeboid organisms after a period of creeping by 

 active amoeboid movement come together in clusters to form the 



B 



D 



Fig. 147. — Dictyostelmm, A, and Sappinia, B, C, D. (After Doflein.) 



pseudoplasmodia, the amoebae retaining their individuality. Indi- 

 viduals creep up over their fellows and form groups or sori which 

 in some cases are stalked, the stalks being formed by the dried bodies 

 of sacrificial amcebcp. The sori are formed by other amcebje creeping 

 over the stalk and accumulating in a mass at the top. Here each 



