216 ILLEGITIMATE OFFSPRING OF CHAP. V 



lived and flowered were short-styled; and twelve of 

 their flowers were fertilised with their own-form pollen 

 and produced twelve capsules containing an average 

 of 28 2 seeds ; so that these two plants, though be- 

 longing to so weakly a set, were rather more fertile 

 than their parents, and perhaps not in any degree 

 sterile. Four flowers on the same two grandchildren 

 were legitimately fertilised by a long-styled illegiti- 

 mate plant, and produced four capsules, containing 

 only 32 2 seeds instead of about 64 seeds, which is 

 the normal average for legitimate short-styled plants 

 legitimately crossed. 



By looking back, it will be seen that I raised at 

 first from a short-styled plant fertilised with its own- 

 form pollen one long-styled and seven short-styled 

 illegitimate seedlings. These seedlings were legiti- 

 mately intercrossed, and from their seed fifteen plants 

 were raised, grandchildren of the first illegitimate 

 union, and to my surprise all proved short-styled. 

 Twelve short-styled flowers borne by these grand- 

 children were illegitimately fertilised with pollen 

 taken from other plants of the same lot, and produced 

 eight capsules which contained an average of 21 '8 

 seeds, with a maximum of 35. These figures are 

 rather below the normal standard for such a union. 

 Six flowers were also legitimately fertilised with pollen 

 from an illegitimate long-styled plant and produced 

 only three capsules, containing on an average 23' 6 

 seeds, with a maximum of 35. Such a union in the 

 case of a legitimate plant ought to have yielded an 

 average of 64 seeds, with a possible maximum of 73 

 seeds. 



Summary on the Transmission of Form, Constitution, 

 and Fertility of the Illegitimate Offspring of Primula 

 Sinensis. In regard to the long-styled plants, their 



