PKINCIPAL SPECIES OF EUCALYPTS GROWN IN AMERICA. 79 



where less hardy species can not be grown the species will be useful 

 for shade, for wind-breaks, for fuel, and for hone}-. It ma}' also 

 prove useful for posts. 



Eucalyptus saligTia. 



Characteristics. — A loft}', straight- stennnod tree, the usual height 

 in Australia being 100 to 200 feet and the diameter 3 to 6 feet. No 

 large trees of this species are known to exist in America, and those 

 that have been set have not given promise of attaining great size. The 

 bark of the trunk is grayish in color, and is rendered nearly smooth 

 by the gradual flaking ofl' of the outer layers. The leaves are lance- 

 shaped, somewhat curved, and long-pointed, the lower side being paler 

 than the upper. The flowers are of medium size, nearly stemless, in 

 clusters of 4 to 8, on a much-flattened stalk. The covering of the 

 unopened flower buds is nearly cone-shaped. The seed cases are com- 

 monly bell-shaped, with protruding valves. 



Climatic requirements. — This species has not l)een ])lantcd exten- 

 sively enough in America for its relation to climate to be established. 

 Very few^ of the trees that had been planted survived the drought of 

 1897-1900 in the Southwest. In Australia this species is confined to 

 the warmer coast regions; hence it could not be expected to endure 

 very severe conditions in America. 



Uses. — In Australia this tree is one of the important sources of lum- 

 ber. The timber is reported to have great strength and durability. 

 It is used for piles, for large beams, for railway ties, and for other 

 purposes where strength and durability are important. The wood is 

 a pale, reddish color, is straight-grained, and is easily worked. It is 

 said by Mr. Maiden to be a favorite with carpenters, who use it for a 

 great variety of building purposes. It is also used by shipwrights 

 and by wheelwrights. 



Eucalyptus siderophloia. 



Broad-i.eafei) Ikoxbakk. 



Characteristics. — The trees of this species attain in Australia a 

 height of 100 feet or more, with a trunk diameter of 8 to 4 feet; and in 

 the Southwest they give promise of growing to a fair size. As of 

 other Ironbark Eucalypts, the bark is persistent and rough, with (juite 

 deep Assures, It is of a rusty color and somewhat flaky. (See PI. 

 XLIV.) The leaves are large and broad, usually rather thick, often 

 much curved, and are of a))out the same color on th(> two sides. (See 

 PI. LXXXIII, A.) The flowers are of about medium size, in clusters 

 of 2 to 8 on more or less angled stalks. The clusters grow either singly 

 or in groups of 2 to 8, mainly at the ends of the twigs. (Sec PI. 

 LXXVII.) The long covering of the flower-bud is conical and sharp 

 pointed. The seed cases with their stems are goblet-shaped. 



