Chap. IV. LYTHRUM SALICARIA. 157 



Besides the experiments in the table, I fertilised a 

 number of flowers without particular care with their 

 own two kinds of pollen, but they did not produce a 

 single capsule. 



Summary of the Results. 



Long-styled form. — Twenty-six flowers fertilised 

 legitimately by the stamens of corresponding length, 

 borne by the mid- and short-styled forms, yielded 61.5 

 per cent, of capsules, which contained on an average 

 89.7 seeds. 



Twenty-six long-styled flowers fertilised illegiti- 

 mately by the other stamens of the mid- and short- 

 styled forms yielded only two very poor capsules. 



Thirty long-styled flowers fertilised illegitimately by 

 their own-form two sets of stamens yielded only eight 

 very poor capsules; but long-styled flowers fertilised 

 by bees with pollen from their own stamens produced 

 numerous capsules containing on an average 31.5 



Mid-styled form. — Twenty-four flowers legitimately 

 fertilised by the stamens of corresponding length, 

 borne by the long- and short-styled forms, yielded 96 

 (probably 100) per cent, of capsules, which contained 

 (excluding one capsule with 12 seeds) on an average 

 117.2 seeds. 



Fifteen mid-styled flowers fertilised illegitimately 

 by the longest stamens of the short-styled form yielded 

 93 'per cent, of capsules, which (excluding four cap- 

 sules with less than 30 seeds) contained on an average 

 103.8 seeds. 



Thirteen mid-styled flowers fertilised illegitimately 

 by the mid-length stamens of the long-styled form 

 ■yielded 54 per cent, of capsules, which (excluding 

 one with 19 seeds) contained on an average 60.2 seeds. 



