56 EUCALYPTS CULTIVATED IN THE UNITED STATES. 



a good fuel. Since, according to Baron von Mueller and ]Mr. Maiden, 

 it extends up the Australian alps nearl}^ to the permanent snow line, 

 it ought to be useful as a forest cover for some of the mountains of the 

 Southwest. 



Eucalyptus cornuta. 

 Yate. 



Characteristics. — The tree does not attain a great height, and is 

 often spreading in habit, branching low and profusely. The trunk is 

 likeh' to be more or less crooked. (See PI. II a.) The wood is one 

 of the heaviest among Eucalypts. The bark of the trunk is never 

 deeply furrowed, but is commonly more or less uneven, and occasion- 

 ally nearly smooth. It is usually persistent, but sometimes small 

 patches are shed. The color is a drab. The branches are unusually 

 smooth, from the repeated flaking ofl' of long strips or irregular 

 patches. The twigs are usually quite red or purplish. The foliage is 

 abundant and pleasing in appearance, especially on young trees. The 

 tree as a whole presents a more or less graceful appearance. 



The leaves of the young trees are round or oval, becoming longer as 

 the tree increases in age. (See PI. LXXXII, d. ) They are rather thin in 

 texture. The flowers are large and quite conspicuous, in compact clus- 

 ters, giving, with the foliage and graceful twigs, an attractive aspect 

 to the tree. The deciduous covering of the flower buds is very long 

 and prominent (the characteristic to which reference is made in the 

 specific name cornuta, the Latin for " horned''), exposing, when it 

 falls off, the long yellow stamens. (See PI. LIV.) 



Climatic requirements. — The Yate endures high temperatures, but 

 will not endure heavy frosts. It thrives on the coast, and endures the 

 dry hot summers of the interior valleys of California and Arizona, 

 provided its roots are supplied with plenty of water. It endures tem- 

 peratures of 110° to 116^ F., but is injured bv minimum temperatures 

 of 23° to 26° F. It prefers a rich, moist soil, but will make a fair 

 growth in poor soil. It seems to be well adapted to moist tropical 

 and semitropical regions, enduring more rain than many other Eucalypts. 



Uses. — On account of its manner of growth and the density of its 

 foliage the Yate makes a very efi'ective, low wind-break and a good 

 shade tree, few Eucal^^pts branching freely so low as it does. The 

 wood is hard, tough, and elastic, being used in Australia for agricul- 

 tural implements, for vehicles, and for boat ribs. In California it 

 has been used almost wholly as a shade tree. 



Eucalyptus corymbosa. 



Bloodwood. 



Characteristics. — The Bloodwood is a tree of moderate size, reported 

 from Australia as sometimes being stunted and somewhat shruliby in 



