FUSION MASSES OF WHOLE STENTORS 



207 



intact, one would be obliterated, or grafting would produce an 

 extra juxtaposition of wide- and fine-stripe areas. 



At first, multiple sets of feeding organelles often remained 

 separated by lateral striping, and such complexes were called 

 doubles or triples. There was a strong tendency for feeding 



Fig. 57. Biotypes of S. coeruleus. 



A. Doublets regenerate and divide as doublets, forming two 

 anlagen in correspondence to the two primordium sites or l.s.c. 



B. Similarly for triplets. 



C. Quadruplet formed by grafting four oral, longitudinal 

 halves does not persist as such but transforms into transition 



disequilibrium forms. 



y- 



>/. 





