168 J. H. MAIDEN. 



first time I have heard of such a substance from this Order and 

 it requires confirmation. 



The E. copalliferus, Retz., of India is a synonym of Vateria 

 indica, Linn., which of course belongs to the Dipterocarpese. 



RuTACEjE. 



This Natural Order yields both gums and gum-resins. Maiden 

 and Smith (63a) give an account of the following gums: — 

 Bosistoa sapindiformis, F.v.M. 

 Geijera Muelleri, Benth., " Axebreaker." 



Melicope neurococca, Benth. ( Bouchardatia neurococca, Baill.) 

 Pentaceras australis, Hook, f., "Scrub Hickory." 



And of the following gum-resins: — 

 Medicosma Cunninghamii, Hook., "Glue gum." 



To which I would add the following gum-resins. 

 Evodia accedens, Blume, of which I have seen a small quantity, 

 not sufficient for chemical examination. 

 Zanthoxylum brachyacanthum, F.v.M., and 



Evodia alata, F.v.M., which are both from Queensland. 

 Lauterer (33) has examined a resin from the latter species. 



Simarube^e. 

 Ailanthus imberbifolia, F.v.M. 



"From wounds in the bark a resinous substance exudes which 

 burns with a brilliant flame." (Thozet, in Report. Inter col. Exh. 

 Melb. 1886-7, p. 232) Queensland. It may be the following 

 variety: — 

 Ailanthus imberbiflora, var. Macartneys Bail. 



For a full account of the soft resin from this tree, see Lauterer 

 (33.) 



Meliace^e. 

 This Natural Order yields both gums and resins. 



Cedrela australis, F.v.M. The "Red Cedar." 



For a full accountof the gum exuded by this tree see Maiden (40). 



