198 ILLEGITIMATE OFFSPRING OF CHAP. V. 



131 and a minimum of 63 : hence this plant did not produce 

 quite 80 per cent, of the normal number of seeds. Twelve 

 flowers were artificially and legitimately fertilised with pollen 

 from a legitimate long-styled plant, and yielded from nine 

 capsules an average of 116 ! seeds, which were finer than 

 in the previous case, with a maximum of 135 and a minimum 

 of 75; so that, as with Plant 17, pollen from a legitimate 

 plant increased the fertility, but did not bring it up to the full 

 standard. 



Plant 19. This mid-styled plant, fertilised in the same manner 

 and at the same period as the last, yielded an average from 

 ten capsules of 73 '4 seeds, with a maximum of 87 and a mini- 

 mum of 64 : hence this plant produced only 56 per cent, of the 

 full number of seeds. Thirteen flowers were artificially and 

 legitimately fertilised with pollen from a legitimate long-styled 

 plant, and yielded ten capsules with an average of 95 '6 seeds; 

 so that the application of pollen from a legitimate plant added, 

 as in the two previous cases, to the fertility, but did not bring 

 it up to the proper standard. 



Plant 20. This long-styled plant, of the same parentage with 

 the two last mid-styled plants, and freely fertilised in the same 

 manner, yielded an average from ten capsules of 69 6 seeds, 

 with a maximum of 83 and a minimum of 52 : hence this plant 

 produced 75 per cent, of the full number of seeds. 



CLASS Y. Illegitimate Plants raised from a Short-styled 

 Parent fertilised with pollen from the mid-length 

 stamens of the long-styled form. 



In the four previous classes, plants raised from the 

 three forms fertilised with pollen from either the longer 

 or shorter stamens of the same form, but generally not 

 from the same plant, have been described. Six other 

 illegitimate unions are possible, namely, between the 

 three forms and the stamens in the other two forms 

 which do not correspond in height with their pistils. 

 But I succeeded in raising plants from only three of 

 these six unions. From one of them, forming the pre- 

 sent Class V., twelve plants were raised ; these con- 

 sisted of eight short-styled, and four long-styled plants, 



