162 



is often named, the Eight Mile Creek, in Cullman County, 



northern Alabama. The soil is alluvial sand, in some places 



rocky, and occasionally overflowed. Its characteristic associate 



is Querciis Prinus L., a species not inhabiting the xerophile upland 



woods of this locality, but confined to the steeper rocky slopes 



and cliffs approaching the bed of the river and the narrow tracts of 



lowland for some distance. It is in this lowland that both species 



meet, but Q. hernardiensis never rises up the slopes or cliffs with 



Q. Prinus, being strictly confined to the afore-mentioned lowland 



tract, nor barring one exception is it found in the long tracts of 



somewhat broadened lowlands with adjacent, more or less gentle 



slopes, where, likewise, Q. Prinus is not found. Others, like Q. 



alba, stellata, and velutina, are not characteristic associates because 



they are met with almost everywhere within this locality, while 



the associated species Q. nigra L. and hybrida, Carpinus caroli- 



niana, Ostrya virginiana, Liguidambar Styraciflua, Nyssa syl- 



vatica are in so far characteristic as they indicate the mesophile 



character of the species. 



St. Bernard College, 

 St. Bernard, Ala. 



ECOLOGICAL SOCIETY OF AMERICA 

 The Preservation of Our Native Plants 



By John W. Harshberger 



The agencies which are active in the destruction of our native 

 .plants have been increased remarkably within the last few years. 

 The building of railroads, of good roads for automobiles, and of 

 canals have materially altered the country-side some distance 

 on both sides of the rights of way. The black clouds of smoke 

 from the freight engines have destroyed many fine areas of wood- 

 land ; individual trees worthy of preservation on account of their 

 rarity, or historic interest, have not escaped the influence of the 

 fine carbon particles, which fill up the breathing pores of the 

 leaves. Many trees have also suffered from the evil effects of 

 the noxious gases, which are products of the incomplete combus- 



