34 CELL STRUCTURES 



which type may be styled oblique germination. In one or 

 two instances the entire spore swells up, lengthens and 

 becomes a rod without any special germination unless this 

 type might be designated hi-yolar. 



Fig. 32. — Spores in the end of the Fig. 33.— Spores in the end of 



rod with no enlargement of the rod the rod with enlargement of the 



around them. The lighter areas rod, A, A, A, A. 

 in the rods are spores. 



Spores are most commonly oval or elliptical in shape, 

 though sometimes spherical. A spore may be formed in the 

 middle of the organism without (Fig. 30) or with (Fig. 31) 



Fig. 34. — Drumstick spores at the end of the rod. 



a change in size of the cell around it. If the diameter 

 through the cell is increased, then the cell with the con- 

 tained spore becomes spindle-shaped. Such a cell is termed 

 a " clostridiuvi," Sometimes the spore develops in the 



