GUMS, RESINS, AND OTHER VEGETABLE EXUDATIONS. 169 



Lauterer (33) gives an analysis of this gum. It is considered 

 by some botanists identical with the "Toon-tree" of India (C. 

 Toona, Roxb.), hence the note of Toon Gum in Pharmacographia 

 Indica, i. 339, 547, will be found of interest. It is worthy of 

 note that a sticky aromatic resin exudes from cedar, e.g., when a 

 box or drawer is kept shut up, but only in small quantities. Native 

 of New South Wales and Queensland 



Melia Azedarach, Linn., (M. composita, Willd.) "White Cedar." 



The tree yields a gum similar to that produced from the Acacia, 

 plum and cherry trees; it may be collected in considerable quantity 

 (Bennett). A specimen of gum, said to be derived from this tree, 

 is in irregular tears, rather adhesive and dull, with a shining 

 fracture, amber-coloured and brownish, rather friable, mixed with 

 fragments of bark, tasteless, soluble in water. (Cooke, Gums and 

 Resins of India. 



I have seen a small quantity of gum from this tree. Lauterer 

 (33) gives an analysis of it. The tree is found from New South 

 Wales to Northern Australia. 



Owenia venosa, F.v.M., "Bog Onion." 



This tree exudes a small quantity of a gum and there is also a 

 garlic odour of the foliage there being a resinous exudation of 

 the young leaves. 



Flindersia maculosa, F.v.M., "Spotted or Leopard Tree." 



This is probably the tree referred to by Mitchell, in the following 

 passage : "In the ground beyond the plains (near the Darling) 

 and an Acacia, with a white stem, and spotted bark, 

 there grows to a considerable size, and produces much gum. Indeed 

 gum acacia abounds in these scrubs, and when the country is 

 more accessible, may become an article of commerce." (Three 

 Expeditions, i., 303.) 



For an account of the gum arabic from this tree, one of our 

 best soluble gums, see Maiden (38). Lauterer (33) gives an 

 analysis of this gum. 



