218 



Smooth-stemmed Form of Foxglove 



complete shortly. For the moment the general statement that the half- 

 hoary condition in the Stock is dependent upon several factors, and that 

 it behaves as a recessive to the fully hoary type will suffice to show that 

 the underlying factorial relationships are here quite different notwith- 

 standing the apparent similarity of the two cases. 



That the smooth-stemmed plant represents a distinct form of pur- 

 purea sharply separated from the accepted type and not a fluctuating 

 condition of the species does not appear, so far as I can discover, to have 

 been recognised by systematists. I have searched in vain in both British 



TABLE I. 



Results obtained when the two forms o/" Digitalis purpurea ivere 

 self- or inter-hred. 



Reference to these two forms by name being more convenient than by a lengthy 

 description I have designated the hairy-stemmed form pabescens, the smooth-stemmed 

 midicaulis. 



Experiment 1 shewing that pubescens 

 (recessive) breeds true. 



Offspring 



Experiment 2 shewing that pure bred 

 nudicaulis (dominant) breeds true. 

 Offspring 



Total 



1166 



None 



