Chap. I. 



PRIMULA VERIS. 



25 



tained no seeds, or only two or three, and these are 

 excluded in the column headed " good capsules " in 

 several of the following tables: 



Table 6. 

 Primula verts. 



Nature of the Union. 



Long-styled by pollen 

 of short-styled. Le- 

 gitimate union. . . 



Long-styled by own- 

 form pollen. Illegiti- 

 mate union .... 



Short-styled by pollen 

 of long-styled. Le- 

 gitimate union . . 



Short-styled by own- 

 form pollen. Illegiti- 

 mate union .... 



Summary : 



The two legitimate ) 

 unions J 



The two illegitimate 

 unions 



Number of 



t lowers 



fertilised. 



22 



20 



13 



15 



35 



35 



Total 

 Number 



of 



Capsules 



produced. 



15 



8 



12 



8 



27 



16 



Number of 

 good 



Capsules. 



14 



11 



6 



25 



11 



Weight of 

 freed in 

 grains. 



8.8 



2.1 



4.9 



1.8 



13.7 



3.9 



Calculated 

 Weight of 

 Seed from 



IOC good 

 Capsule*. 



62 



42 



44 



30 



54 



35 



I 



The results may be given in another form (Table 7) 

 by comparing, first, the number of capsules, whether 

 good or bad, or of the good alone, produced by 100 

 flowers of both forms when legitimately and illegiti- 

 mately fertilised; secondly, by comparing the weight 

 of seed in 100 of these capsules, whether good or bad; 

 or, thirdly, in 100 of the good capsules. 



We here see that the long-styled flowers fertilised 

 with pollen from the short-styled yield more capsules, 

 especially good ones (i. e. containing more than one 

 or two seeds), and that these capsules contain a greater 



