Naturalisation in Extra-Tropical Countries. 203 



dwellings and of hospitals. Thus the foliage is also very inflam- 

 mable, 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 some- 

 times 1-J 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 polyanthema, 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 railway- 

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

 passed. It is extremely strong, excelling oak and ash, surpassed 

 among Eucalypts in transverse strength, according to our experiments, 

 only by E. Leucoxylyon and E. siderophloia. The tree flowers 

 during the cool season, and is thus prominently important to bee- 

 keepers. A variety of this tree, passing as Slaty Gumtree, is much 

 lauded by the Rev. Dr. Woolls on account of the value of its timber. 

 Thrives well around the city of Algiers [Prof. Bourlier]. 



Eucalyptus populifolia, Hooker. 



The " Bembil " or Shining-leaved Box-Eucalyptus. Dry inland- 

 portions of Eastern Australia. Height not above 50 feet ; but stem- 

 diameter to 3 feet. Likes humid underground. Leaves deciduous 

 for a short time in the year. The oil contains Cymin-Aldehyde and 

 a fair proportion of Eucalyptol (Cineol) [SchimmelJ,'the latter being 

 the substance on which the therapeutic value almost entirely depends. 

 Wood used for posts, handspikes, levers and other articles needing 

 toughness ; proved to be very durable [Bailey]. 



Eucalyptus punctata, Be Candolle.* 



The Leather-jacket or Hickory -Eucalypt or Grey Gumtree of New 

 South Wales. A beautiful tree, attaining a height of 100 feet or 

 more, of rather quick growth, thriving even in poor soil. The wood 

 is of a light-brown colour, hard, tough and very durable ; used for 

 fence-posts, railway-sleepers, wheelwrights' work, also for ship- 

 building [Woolls]. 



