CHAP. IV. LYTHRUM SALICAKIA. 



TABLE 25. Short-styled Form continued. 



157 



v. 



Illegitimate union. 

 10 flowers fertilised by own-form 

 longest stamens. 





















 



Too sterile for any average. 



VI. 



Illegitimate union. 

 10 flowers fertilised by own-form 

 mid-length stamens. 



64?* 















21 



9 



Too sterile for any average. 



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 le- 

 gitimately 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 



* I suspect that by mistake I 

 fertilised this flower iu compart- 

 ment VI. with pollen from the 

 shortest stamens of the long-styled 

 form, and it would then have 

 yielded about 04 seeds. Flowers 



to be thus fertilised were marked 

 with black silk ; those with pollen 

 from the mid-length stamens of 

 the short-styled with black thread; 

 and thus probably the mistake 

 arose. 



