PRINCIPAL SPECIES OF EUCALYPTS GROWN IN AMERICA. 81 



attractive aspect, it makes a desirable shade tree for many situations. 

 As a wind-break it is also serviceable, and is a valuable source of 

 honey. As a forest cover for situations too stony and sterile for the 

 faster-growing species, it has considerable value. Railway companies 

 would do well to consider the planting of this tree along portions of 

 their lines running through moderately warm, dry regions, for the 

 production of timber for bridges and track repairs. 



Eucalyptus stuartiana. 



Apple-scented Eucalypt. 



Characteristics. — The trees of this species never attain a very great 

 size, but they make a comparatively rapid growth during the first 

 ten years, in some cases reaching a trunk diameter of 1 foot and a 

 height of 30 to 40 feet during that period. The tree usually grows 

 quite erect, with a somewhat stocky appearance. The bark of the 

 trunk and main branches is rough and more or less fibrous. It is of a 

 grayish brown color outside and is salmon colored next the wood. 

 The leaves of the young seedlings and of young suckers are opposite 

 on the stem, and roundish or lance-shaped, usually having- a distinct 

 bloom on the surface. (See PI. LXXXIV, c.) The later leaves are 

 scattered, lance-shaped, or sickle-shaped, shiny, and equally dark green 

 on the two surfaces. When crushed they give forth a pleasant odor, 

 somewhat resembling that of apples. The flowers are of medium size, 

 usually in compact clusters of 3 to 8. The deciduous covering of the 

 flower buds is cone-shaped. The seed cases are rather small, and are 

 commonly nearly top-shaped. 



Climatic requirements. — The species thrives at and near the coast, 

 but does not do well in the dry, hot valleys of the interior. It endures 

 minimum temperatures of 10° to 18° F. , and it therefore may be 

 planted in higher latitudes and at greater elevations than most species. 



Uses. — Upon account of its resistance to frost, this Eucalypt is useful 

 for a forest cover, for windbreaks, and for shade in ravines and on 

 fairly moist hillsides and mountains where, on account of too heavy 

 winter frosts, other species would not thrive. The tree furnishes a 

 timber that is hard, but, not being straight-grained, is somewhat diffi- 

 cult to split. It is useful for fence posts and for fuel. According to 

 Baron von Mueller, it is employed to some extent for furniture manu- 

 facture in Australia. 



Eucalyptus tereticornis. 



Forest Red Gum. 



Characteristics. The tree attains a good size under favorable con- 

 ditions, but it is commonly not much above Ion feel in height and 6 



feet in diameter in Australia. In the Southwest it makes quite a rapid 

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