CHAP.V. HETEROSTYLED TKIMORPHIC PLANTS. 191 



contained on an average 44 '2 seeds; whereas the 

 capsules on legitimate long-styled plants, legitimately 

 and naturally fertilised by other legitimate plants, 

 contained on an average 93 seeds. Therefore this 

 illegitimate plant yielded only 47 per cent, of the 

 full and normal complement of seeds. 



Standard Number of Seeds produced by Legitimate Plants 

 of the three Forms, when legitimately fertilised. 



Long-styled form : average number of seeds in each 

 capsule, 93 ; maximum number observed out of twenty- 

 three capsules, 159. 



Mid-styled form : average number of seeds, 130 ; 

 maximum number observed out of thirty-one capsules, 

 151. 



Short-styled form : average number of seeds, 83 ' 5 ; 

 but we may, for the sake of brevity, say 83 ; maximum 

 number observed out of twenty-five capsules, 112. 



CLASSES I. and II. Illegitimate Plants raised from 

 Long-styled Parents fertilised with pollen from the 

 mid-length or the shortest stamens of other plants of 

 the same form. 



From this union I raised at different times three 

 lots of illegitimate seedlings, amounting altogether to 

 56 plants. I must premise that, from not foreseeing 

 the result, I did not keep a memorandum whether the 

 eight plants of the first lot were the product of the 

 mid-length or shortest stamens of the same form ; but 

 I have good reason to believe that they were the pro- 

 duct of the latter. These eight plants were much more 

 dwarfed, and much more sterile than those in the other 

 two lots. The latter were raised from a long-styled 



