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root might be collected from many Orchidee. Few may be aware 
that the Cajeput oil of India is obtained from trees very similar to our 
common Melaleuce ; and that even from the leaves of the Eucalypti 
an oil can be procured of equal utility. ‘The Sandarac, exuding from 
the Callitris or pine tree, the balsamic resin of the grass trees, and, 
moreover, the Eucalyptus gum, which could be gathered in boundless 
quantities, and which for its astringent qualities might here at least 
supersede the use of kino or catechu, will probably at a future period 
form articles of export. 
“ Several Acaciz are of essential service, either for their durable 
wood, or for the abundance of tannin in their bark, which has ren- 
dered them already useful, or for their gum; but the latter is even 
excelled in clearness and solubility by that obtained from Pittospo- 
rum acacioides. This species, as well as many other plants of the 
same order, is distinguished by a surprising yet apparently harmless 
bitterness —a quality that warrants our expecting considerable medi- 
cinal power, and which deserves so much more attention, as till now 
we know nothing of the usefulness of the Pittosporez, although this 
order extends over a great part of the eastern hemisphere. 
“The Australian Manna consists in a saccharine secretion, con- 
densed chiefly by the Cicades from a few species of Eucalypti, but is 
chemically very differently constituted to the Ornus Manna, and much 
less aperient. All our splendid Diosmexw—a real ornament to the 
country—approach more or less in their medicinal effect to the South 
African Bucco-bushes. 
“ Beckea utilis, from Mount Aberdeen, might serve travellers in 
those desolate localities as tea, for the volatile oil of its leaves resem- 
bles greatly in taste and odour that of lemons — not without a plea- 
sant, peculiar aroma. ‘Trigonella suavissima proved valuable as an 
antiscorbutic spinage in Sir Thomas Mitchell’s expedition; and the 
Tetragonella implexicoma, the various Cardamines, Nasturtium ter- 
restre, or Lawrencia spicata, may likewise be used for the same pur- 
pose. The root of Scorzonera Lawrencii—a favourite food of the 
natives—would form, if enlarged by culture, an agreeable substitute 
for Scorzonera Hispanica, or Asparagus; and Anistome glacialis— 
a large-rooted umbelliferous plant, from the snowy top of Mount 
Bullér—will be added, perhaps, hereafter, to the culinary vegetables 
of the colder climates. Seeds of the latter plants, amongst many 
others, have been procured for the Botanic Gardens. Santalum 
lanceolatum, Mesembryanthemum zxquilaterale, Leptomeria pungens, 
and Leptomeria acerba, deserve notice for their agreeable fruit. 
