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so that the litter is not especially noticeable. The berk of the upper 

 branches scales off leaving a shining white trunk which is characteristic of 

 the genus. 



The botanical differences between the Oriental Plane (Platanus grientelis) 

 and the native variety ( Plane tug occidentelis) are not striking from the popular 

 point of view, but it has been found that the native form is freely attacked 

 by a fungous disease which disfigures the trees all summer and often prevents 

 foliation, producing death to many limbs. 



Aside from this the oriental form assumes a more symmetrical habit of 

 growth. The trees at maturity are broad spreading trees of serai-pyramidal 

 shape, while the native form is often very irregular. Both species need 

 considerable water as they inhabit bottom lands and creek borders in their native 

 haunts. In spite of this taey do very well in the city with ordinary care and 

 in some cities, notably Paris, have become one of the dominant trees of the city. 



The Poplars. 



The Poplars, for street trees, are, at best, makeshifts. They are rapid 

 growing trees, reaching maturity quickly and showing rapid signs of decline. 

 They sucker freely and obnoxiously, fill all the neighboring top-soil with fine 

 roots which quickly impoverish the soil. 



The Silver Poplar (Pppulue elba) is a tree of considerable beauty with 

 whitish bark and tremulous leaves with conspicuous white lower surfaces to the 

 shining dark green leaves. Like the other poplars it is short-lived, has 

 brittle wood and suckers badly. 



The Carolina Poplar (Populus deltoides) resembles the Lombardy poplar in 

 many ways but has more slender twigs and a more spreading habit of growth. 



Fremont's poplar ( Populue_ Fremo ntii ) is a native species somewhat like 

 the silver poplar in color, but differing from it in that it becomes a much 

 larger tree. It is especially desirable in the interior valleys as it thrives 

 there under adverse conditions. 



