420 



MR. C. DAR-\Vry OK THE ILLEGITIMATE OFFSPBIJh^G 



Form and union 



o ^ 



s 



3 



TO 



0^ 



t4 



;3 



a. 



3 "^ 



a 



Long-styled form, fertilized by 

 own-form pollen. Illegitimate 

 union 



I 



P. 



u 9 



3 



s 



c 

 S 



a 



03 



g 

 00 



CO 



O 



3 



03 



o 



21 



Long-styled form, fertilized by pol- 

 len from short-styled. Legiti- 



mate union 



14 



52-2 



66 



12 



•3 ® 



■in t-( 



cd 



o 



03 



30 



11 



Short-styled form, fertilized by ] 

 own-form pollen. Illegitimate i 

 union j 



18 



7 



6G-9 



77 



18-8* 



43 



47 



5 



Short-styled form, fertilized by pol- 

 len from long-styled. Legiti- 

 mate ;mion 



8 



7 



G50 



75 



48 



* Probably too low an avera(io. 



Var. rubra, — Mr. Scott states t that this variety, which grew 

 ill the Botanic Garden in Edinburgh, was quite sterile when fer- 

 tilized by pollen from the common Primrose, as well as from a 

 white variety of the same species, but that some of the plants, 

 when artificially fertilized with their own pollen, yielded a mode- 

 rate supply of seed. He was so kind as to send me some of the 

 self- fertilized seed, from which I raised the plants immediately to 

 he described. I may premise that my experiments on the seed- 

 lings, made on a large scale, do not accord in the result with those 

 made by Mr. Scott on the parent plant. 



First, in regard to the transmission of form and colour. The 

 parent plant was long-styled, and of a rich purple colour. From the 

 self-fertilized seed 23 plants were raised ; of these 18 were puri)le, 

 of difterent shades, with 2 of them a little streaked and freckled 

 with yellow, thus showing a tendency to reversion ; and 5 were 

 yellow, but generally with a brighter orange centre than in the 

 wild flower. All the plants were profuse flowerers. All were 

 long-styled ; but the pistil varied a good deal in length even on the 

 same plant, being rather shorter, or considerably longer, than m 

 the normal long-styled form ; and the stigmas likewise varied in 

 shape. Hence it is probable that an equal-styled variety of the 

 primrose would be found by careful search ; and I have received 

 two accounts of plants apparently in this condition. The stamens 



t Proc. Linn. Soc. viii. (1864) p. 98. 



