Naturalisation in Extra-Tropical Countries. 183 



Eucalyptus pilularis, Smith.* 



The Black-butt of South- Queensland, New South Wales and 

 Gippsland. One of the best timber-yielding trees about Sydney ; 

 of rather rapid growth [Rev. Dr. Woolls]. Exceptionally rising 

 to 300 feet. At Bulli a stem expanded by buttresses to 57 feet 



r'rth at the base ; the stem measured 40 feet in circumference at 

 feet from the ground. More branching out when young than 

 many other species, and thus fitter for storm-exposed localities 

 [H. L. Holmes]. Timber much used for flooring-boards, also for 

 railway-sleepers and telegraph-poles. Weight of a cubic foot of 

 absolutely dry wood from 50 to 56 Ibs., equal to specific gravity 

 0-803-0-897 [F. v. M. and Rummel]. The kino of this tree is 

 soluble as well in water as in alcohol [J. H. Maiden]. 



Eucalyptus piperita, Smith. 



New South Wales and Gippsland, often termed White Stringy- 

 bark-tree. It grows to a considerable height, and its stem attains 

 a diameter of four feet. The wood is fissile, and used for the same 

 purposes as that of other Stringybark-trees. The Kino is soluble 

 in water as well as in alcohol. The foliage is rich in volatile oil, 

 and yields also, according to Mr. J. H. Maiden, a comparatively 

 large percentage of kino-tannin, about 12f per cent, from perfectly 

 dried leaves. All Eucalypts with strong-scented foliage are useful 

 as insecticides ; the fresh leaves also purify the air of unsalubrious 

 dwellings and of hospitals. Thus the foliage is also very inflammable, 

 and this has to be kept in mind when establishing Eucalyptus- 

 forests. 



Eucalyptus Planchoniana, F. v. Mueller. 



^South-Queensland and Northern part of New South Wales. A 

 tree to about 100 feet in height, the stem reaching 3 feet in 

 diameter. The foliage is dense. Timber sound, heavy, hard and 

 durable, well adapted for sawing, but not easy to split [Bailey] . 



Eucalyptus platyphylla, F. v. Mueller. 



Queensland. Regarded by the Rev. Julian Tenison-Woods as 

 one of the best of shade-trees, and seen by him to produce leaves 

 sometimes 1| feet long and 1 foot wide. This tree is available for 

 open exposed localities, where many kinds of trees from deep 

 forest-valleys would not thrive. It is closely allied to E. alba from 

 Timor. The timber is curly and durable. 



Eucalyptus poly anthema, Schauer.* 



South-Eastern Australia. Generally known as Red Boxtree A 

 tree, attaining a height of 150 feet ; it furnishes an extremely hard 

 and lasting timber, in great demand for mining purposes and rail 

 way-sleepers, also for wheelwrights' work, For fuel this wood is 

 unsurpassed. It is extremely strong, excelling oak and ash, sur- 

 passed among Eucalypts in transverse strength, according to our 



