THE EUCALYPTS AS EXOTrCS. 15 



tion of each continent of the globe is receiving the benefit of the 

 distribution of this useful genus from its native home. In many of 

 the above regions the Eucalypts are a conspicuous feature of the 

 country, the aspect of the landscape having in some cases been com- 

 pletely changed by the planting of these trees. There are undoubtedly 

 many other parts of the earth yet to be benefited by the introduction 

 and extensive planting of species adapted to the climatic conditions. 

 The tests of various species made in Arizona by the writer, during 

 the past three years, indicate that there are species of Eucalypts 

 adapted to many regions where they have not been tried. These 

 experiments indicate also that in localities where it has been supposed 

 they could not be grown successfully as forest trees suitable varieties 

 have not been tried. There is need of a careful study of these trees 

 in their native habitats, in order to determine what species may be 

 introduced into regions with climate and soil similar to those of the 

 districts in which the respective species grow naturally. 



IN SOUTHERN EUROPE. 



According to Baron von Mueller Eucalypts were first planted in 

 Europe in the botanic garden of Naples, in the early part of the last 

 century. But their value as forest trees was not recognized any- 

 where in southern Europe until after the middle of the century, and 

 in Italy not until 1870. During the past forty years their culture has 

 increased rapidly. Claude M. Thomas, American consul at Marseilles 

 in 1891, states, in Consular Reports No. 168, that "the cultivation of 

 the Eucalyptus is receiving much attention from thoughtful men, 

 wherever in Europe climate and soil are of a character adapted to its 

 growth." 



The French botanists and gardeners were pioneers in studying 

 Eucalypts and in distributing them throughout southern Europe. 

 Their interest seems to have continued unabated for nearly half a 

 century, more publications on the culture and uses of the Eucalypts 

 having appeared in the French language in that time than in any 

 other, and probably more than in all other languages in which such 

 treatises have been written. The Eucalypts were introduced into 

 France during or before 1851, and during the succeeding quarter 

 century were planted extensively. Planchon said in 1875: 



Now the entire region from Cannes to Monaco displays to the traveler * 

 the aspiring branches of the Eucalyptus, with their scythe-shaped leaves trembling 

 beneath the slightest breeze, and withstanding the repeated and violent winds from 

 the east. 



M. Henri Carreron, in an article in a recent number of the Journal 

 de Geneve, makes the following statements concerning the present 

 prevalence of Eucalypts in southeastern France: 



A Provencal who has not seen the C6te d'Azur for the lasl forty years would nol 



