Vegetative Mutations. 
623 
market only as a variety of C. purpurcus, had arisen as 
a result of the grafting of C. purpurcus on C. Laburnum] 
but his contemporaries did not agree with this, and CA- 
MUZET maintains that he has seen the tree from which 
Fig. 139. Cytisus Adami. A, A', A"; B, a branch of C. 
Laburnum, L, L', L", with numerous racemes bearing 
ripe pods. 
ADAM had taken his buds for the purpose of making 
the grafts, and that this tree possessed all the characters 
of Cytisus Adami. The hypothesis that this form is a 
graft hybrid, originated with CASPARY (1865). No case 
