128 THE EVOLUTION OF LIVING BEINGS. 



which proved to be fully fertile. The seeds of two of 

 these hybrid-combinations he very kindly gave tome 

 for further investigation. 



One of these combinations was Antirrhinum glutino- 

 sum crossfertilised with a peloric form of Antirrhinum 

 ma jus. 



As Antirrhinum glutinosum contains several types, 

 all of which are completely selfsterile, the F 1 genera- 

 tion obtained was somewhat polymorphous, though not 

 to a considerable extent. On the whole, it was fairly 

 intermediate between the two parent species. 



The F 2 obtained from the F t plants was exceedingly 

 polymorphous ; one of the self-fertilised F x plants gave 

 255 children, not two of which were alike. They dif- 

 fered in a large number of characters, such as colour, 

 form of flowers, habit of growth, leaf-characters, hoa- 

 riness, self-fertility, resistance to draught and frost etc. 

 Zygomorphous and peloric flowers were always present, 

 and it appears that the segregation was a complicated 

 mendelian one. 



The most interesting results perhaps were obtained 

 from the cross A. glutinosum by a red zygomorphous 

 form of A. majus. 



In the F 2 of this cross, several remarkable forms oc- 

 curred, in one f. i. the sepals were coloured and peta- 

 loid, another showed several spur-like excressences at 

 the lower lip of the flower and some had flowers asto- 

 nishingly different from those of the parent-species, 

 resembling more a Rhinanthusiha.na.nAntirrhinuma.nd 

 of a type entirely unknown hitherto within this latter 

 genus, as the photographs here reproduced show. 



