A quantitative Study of Variation, Natural and Induced, etc. 205 
Fig. No. 9 represents the mutant (1); and the normal type of 
the species (2). Differences in leaf form, thickness of stem, character 
of branch termination, and productiveness are shown. Fig. No. Io 
shows in more detail the difference in the branch termination, and 
Fig. 9. No.1 is plant 250—sa—245; No. 2 is plant 250—5a—244. 
the number of seed pods found in typical clusters. Those from plant 
No. 250—5a—244 represent the normal type of the species, while 
those from plant No. 250—5a—245 represent the mutation. 
Fig. No. 11 represents the five mutations of this type found 
and the pedigree number attached gives the relationships of the plants. 
