GUMS, RESINS, AND OTHER VEGETABLE EXUDATIONS. 167 



lxx., (ii.), 60, and doubtless the composition of Australian 

 Sterculia gums will be found to be similar. 



In addition to the gums described in (41) I have seen gums 

 from the following species, the composition and appearance of 

 them appearing to be identical with those described. 

 Sterculia quadrifida, R.Br. 



Brachychiton diversi/olius, R.Br. (Syn. Sterculia caudata, Hew.) 

 North-west Australia. 



Brachychiton discolor, F.v.M. (S. discolor, F.v.M. and S. lurida t 

 F.v.M.) 



Brachychiton acerifolius, F.v.M. (S. acerifolia, A. Cunn.) 



Tarrietia argyrodendron, Benth., "Buyong or Ironwood." 



I have seen gum from this and the other New South Wales 

 species and they appear to be all similar to one another and 

 identical with Sterculia gum. 



Heritiera littoralis, Dry and., a "Red Mangrove." 



This tree yields a gum called "Mendora" in Ceylon. It is also 

 a native of Queensland and Northern Australia. 



TlLIACE^. 



Echinocarpus australis, Benth., "Maiden's Blush." 



For an account of this gum see Maiden (47). Mr. Bauerlen 

 informed me that he has seen it used in the Big Scrub as a stiffener 

 for straw hats. 



Sloanea Woollsii, F.v.M., "Carabeen." 



I have seen a similar gum from this species. 



I have seen small quantities of a pale gum which swells up in 

 water exuding from the following species of Elceocarpus : 

 E. reticulatus, Sm. (E. cyaneus, Ait.) Blue-berry. 



E. obovatus, G. Don. 



E. grandis, F.v.M., "Calhoun" or "Brisbane Quandong." 



The Fijian E. Storckii, Seem., exudes a gum resin, on the 

 authority of Mr. Storck, (Seemann, Flora Vitensis). This is the 



