1 1 8 Leguminosce L aburmim. 



the leaves have rather shorter petioles ; but the most remark- 

 able thing in it is the complete reversion of some parts of the 

 same tree to one or the other of the parents. Thus the three 

 forms may be seen growing on one stem, having the appear- 

 ance of being grafted upon it. The hybrid is sterile, but the 

 parent reversions fertile. 



Fig. 67. Laburnum vulgare. (J nat. size.) 



2. L. alplnum. Scotch Laburnum. Very similar to the 

 preceding, and some of the varieties in cultivation appear 

 to partake of the characteristics of both. This differs from 

 No. 1 in the pod being quite glabrous, distinctly stalked, and 

 winged along the upper suture. It is also of larger growth, 

 quickly forming a tree from 20 to 30 feet high. A native of 

 South-eastern Europe. L. pendulum and confertum are 

 varieties. 



3. L. ramentaceum, syn. L. Weldeni. The racemes in this 

 species or variety are sub-erect, and it is of dwarf shrubby 

 habit, with very hairy leaves. A native of Dalmatia. A variety 

 called serotinum. Autumn-flowering Laburnum, is referred to 

 this species. 



7. GENISTA. 



Dwarf prickly or unarmed shrubs with 1-foliolate leaves or 



