Ethel M. Doidge 



65 



Young cultures on agar (24 hours at 25° C.) show very similar 

 characters to those described above (Fig. 4) with the exception of the 

 two abnormal forms just mentioned. The size of the rods is very variable, 

 some are almost spherical, the limits of size being -5 — -3 /a x -45 — -7 fx; 



>:> 





Fig. 4. 





Fig. 5. 



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Fig. 6. 



Fig. 7. 



Figures 4-7. Bacierinm nectarophUHm; magnification same as Fig. 1. Fig. 4. 24 hrs. 

 at 25° C. on nutrient agar. Fig. 5. Uschinsky's solution, 7 days at 25° C. 

 Fig. 6. Direct from host plant. Fig. 7. 24 hrs. at 25° C, Ellis's flagella stain. 



the majority are 1 — 1-5 x -6 — -GS/x. They are usually single or in 

 pairs but chains of 5 — 10 are fairly frequent, and these are peculiar in 

 that the rods are not as a rule placed uniformly end to end, but are 



Ann. Biol, iv 5 



