THE THREE TOHMS OF LTTHBTJil SAIICAHIA. 



183 



I fertilized a considerable number of flowers with pollen, taken by a 

 camel's-hair brush, fi-om both the long and short stamens of their own 

 (shoi-t-styled) fomi ; but I did not examine -n-ith a lens (as I did in the 

 cases in the Tables) whether sufficient pollen had been placed on the 

 stigma : only 5 capsules were produced, and these yielded, on an ayerage, 

 11-0 seed. 



Table III. — Stiobt-sttled romr. 



I. 



12 flowers fertilized bj^ the shorter 

 stamens of the long-styled. These 

 stamens equal in length the pistil of 

 the short-styled. 



61 



88 



88 



112 



66 



111 







62 







lOO 



83 per cent, of the flowers yielded 

 capsules. Each capsule contained, 

 on an ayerajre, 81-3 seed. 



II. 



13 flowers fertilized by the shorter 

 stamens of the mid-styled. 'Iltese 

 stamens equal in length the pistil of 

 the short-styled. 



93 

 77 

 48 

 43 

 

 



ca 



09 

 o3 

 9 

 

 

 



61 per cent, of the flowers yielded 

 capsules. Each capsule contained, 

 on an ayerage, G4'6 seed. 



HI. 



10 flowers fertilized by the longer 

 stamens of the long-styled. 

 14 















— 



23 

 Too sterile for any ayerage. 



10 flowers fertilized by the longer 

 stamens of the mid-styled. 

 " 















— 





 Too sterile for any average. 



"white thread," and those by the longer stamens of the long-styled form by 

 " white silk ; " a flower fertilized in the latter manner would have yielded about 

 136 seed, and it may be observed that one such pod is missing, viz., at the bottom 

 of compartment 1. Therefore I have hardly any doubt that I fertilized a 

 flower marked with " white thread," as if it had been marked with " white silk." 

 With respect to the capsifle which yielded 9^ seed, in the same column with that 

 which yielded 136, I do not know what to think. I endeavoured to prevent 

 pollen dropping from an upper to any lower flower, and I tried to remember 

 to wipe the pincers carefully after each fertilization ; but in making eighteen 

 different crosses, sometimes on windy days, and pestered by bees and flies buzzing 

 about, some few errors could hardly be avoided. One day I had to keep a 

 third man by me all the time to prevent the bees visiting the uncovered plants, 

 for in a tew seconds' time they might have done irreparable mischief. It was 

 also extremely difSoult to exclude minute Diptcra from the net. In 1862 I 

 made the great mistake of placing a mid-styled and long-styled under the same 

 huge net : in 1863 I avoided this error. 



