Naturalisation in Extra- Tropical Countries. 



Queensland and New South Wales. Extreme height about 60 

 feet. A kind of " Myall," with hard, dark, prettily grained wood, 

 which is however less fragrant than that of some other species. 



Acacia Greg's*!!, Asa Gray. 



From Southern California to Arizona and Texas. A small tree, 

 allied to A. Wrightii (Bentham) of the Rio Grande-region. A 

 kind of lac is copiously obtained from this tree in the Mojave- and 

 Colorado-Deserts [Prof. Stilman]. This plant lives at a rainfall 

 of 3 inches a year. 



Acacia g-ummifera, Willdenow. 



This tree yields principally the Grum Arabic of Morocco [Sir 

 Joseph Hooker and John Ball]. The principal collecting time 

 extends over six weeks in midsummer. 



Acacia harpophylla, P. v. Mueller. 



Southern Queensland. A tree, sometimes attaining a height of 

 90 feet, furnishing locally a considerable share of the mercantile 

 wattle-bark for tanning purposes, particularly for light leather. 

 Wood, according to Mr. P. O'Shanesy, brown, hard, heavy and 

 elastic, somewhat of violet odor ; it splits freely and is thus also 

 well adapted for fancy lathe- work ; used by the natives for spears. 

 The tree grows naturally on sand-lands, almost to the exclusion of 

 other trees and shrubs. Saplings, used as stakes in vineyards, 

 have lasted 20 years and more. The tree yields also considerable 

 quantities of gum. It is one of the principal " Brigalows " in the 

 scrubs. of that designation. 



Acacia heteroclita, Meissner. 



South-Western Australia. This or an allied species furnishes a 

 particular sort of edible gum, called by the autochthones "Quannot" 

 [Hon. John Forrest]. 



Acacia homalophylla, Cunningham. 



The principal "Myall," extending from the desert of South- 

 Australia into New South Wales. Never a tall tree. The dark- 

 brown wood is much sought for turners' work on account of its 

 solidity and fragrance ; perhaps its most extensive use is in the 

 manufacture of tobacco-pipes. Allied species pass under the abori- 

 ginal appellation "Boree." Some or most will grow in the bleakest 

 and most arid locali ties, wherever frost is not severe. 



Acacia horrida, Willdenow. 



The "Doornboom" or " Karra-Doorn " of South- Africa. A for- 

 midable hedge-bush with thorns often 3 inches long, readily avail- 

 able for impenetrable hedge-rows. It exudes also a gum of good 



