ON SOME N.S.W. TAN- SUB STANCES. 2G9 



70. Eucalyptus sideropiiloia, Benth., N.O. Myrtacere, B. iii., 

 220. Figured Dec. 4, " Eucalyptographia." 

 Found in New South Wales and Queensland. 

 Vernacular Name — " Ironbark." 

 Locality whence this particular specimen was obtained- — 



Cambewarra. 

 Geological Formation — Sandstone. 

 Part of the Tree Examined — Leaves. 

 Particulars of the trees whence they were obtained— Saplings 



about 6 inches in diameter. 

 Collected 21st August, 1886. Analysed 11th to 17th 



November, 1887. 



Leaves elongate or narrow-lanceolar, moderately or not much 

 ^curved, often not very inequilateral, of almost equal colour on 

 both sides ; primary veins numerous, subtle, and very spreading, 

 the circumferential vein . near to the edge of the leaf ; oil-dots 

 much concealed. (Eucalyptographia.) 



Leaves ovate-lanceolate or lanceolate, much acuminate, straight 

 or more frequently falcate, about 3 to 6 inches long, often rather 

 thick, with numerous fine diverging veins, the intramarginal one 

 close to the edge. (B. Fl.) 



Average length 117*6 mm. Average breadth 20*1 mm. Colour 

 of powdered leaves olive-brown. 



Extract.— The^ yield 22-93 per cent, to water at 100° C. 

 Colour of extract orange, of moist residue pure brown. 



Kino-tannic acid — 5 -95 per cent. 



71. Eucalyptus robusta, Smith, N.O. Myrtaceae, B. Fl. iii., 228. 

 Figure Dec. 7, " Eucalyptographia." 

 Found in New South Wales and Queensland. 

 Vernacular Name — " Mahogany." 

 Locality whence this particular specimen was obtained — 



Brooman, Clyde River. 

 Geological Formation — Granite. 

 Part of the tree examined — -Leaves. 

 Particulars of the trees whence they were obtained — Height 



60 to 80 feet, diameter 1 foot 6 inches. 

 Collected 15th September, 1886. Analysed 11th to 28th 



November, 1887. 



Leaves large, scattered, oval-lanceolar, pointed, of thick 

 consistence, shining, paler beneath, hardly or slightly inequilateral; 

 veins copious, prominent, very spreading, the circumferential vein 



