65 



almost at the end of the right hand bank of the Walk, 

 just where the Walk meets the Drive to cross over to 

 the terrace wall of the Flower Garden. 



To go back a moment, notice about opposite the hem- 

 lock and the Norway maple which you passed just 

 above, the fine yellow-wood with its smooth branches 

 and long compound leaves. You can pick out a yel- 

 low-wood almost by the look of its bark, a smooth 

 slate gray, not quite so light and plump as the beech 

 nor so silvery as the silver linden but nevertheless 

 very smooth and satin-like to the eye, especially in 

 winter. Its leaves are compound, alternate and odd- 

 pinnate with the bases of the petioles hollow. The 

 leaves are made up of from seven to eleven oval or 

 ovate leaflets about three to four inches long and 

 are of a beautiful light green color. The flowers of 

 the yellow-wood are very dainty and pretty and hang 

 in long drooping panicles of pure white in late June 

 or early July with something of the fragrance of the 

 common locust's flowers. The flowers develop into 

 pods about two inches long and are ripe in August. 



About opposite the Koclreutcria, on your left, as you 

 walk on south, you pass an interesting bush with its 

 k-aves in threes. It is the Ptclca trifoliate, the hop 

 tree or shrubby trefoil. It gets its name Ptclea from 

 its fruit, which is elm-like, ptclca being Greek for 

 elm. Its fruit is wafer like, and does indeed look 

 very much like the samara of the elm, but on an en- 

 larged scale. This shrub blooms in June with green- 

 ish white flowers in terminal heads or cymes and 

 these in turn develop into conspicuous clusters of 



