306 TWO SPECIES OF EUCALYPTUS FROM EASTERN AUSTRALIA, 



Leaves mostly alternate, from linear or narrow lanceolate in 

 the adventitious shoots, and from lanceolate to oblong lanceolate 

 in the normal form; under 6 inches long and half an inch wide; 

 occasionally shining. Venation rather obscured in the thick 

 epidermis; lateral veins sparse, oblique, distant; intramarginal 

 vein removed from the edge. Oil glands numerous, but exceed- 

 ingly small. 



Flowers small on axillary peduncles or terminal panicles. 

 Calyx turbinate, angled, gradually tapering into a short pedicel. 

 Operculum conical, blunt. 



Fruits small, oval-urnshaped, angled, under 3 lines long, and 

 under 1^ lines in diameter, valves depressed. 



Technology. 



Timber.— The timber of this tree is harder than that of any 

 Eucalyptus tree known to me. It is very heavy, close-grained and 

 interlocked, has a chocolate colour, and much resembles, in texture, 

 colour and hardness, Lignum-vitfe, Guaiacum officinale Linn., of 

 Central America. In fact, it is more deserving the title of 

 Australian " Lignum-vitse " than other trees of the Continent 

 passing under that name, and I have so named it in Museum 

 specimens. It is no doubt very durable and suitable for sleepers, 

 posts, rails, bi'idges, cogs, mallets, &c., &c. 



Oil.— Through the kindness of Mr. C. W. Chapman of Tanda- 

 wanna Estate, leaves were received from that locality, but the 

 result of the distillation was disappointing, as the amount of oil 

 was very small, not more than a large teaspoonful of oil being 

 obtained from 88 lbs. of leaves and terminal branchlets. 



The oil is reddish in colour and very mobile, evidently consisting 

 largely of esters. 



The refractive index at 16°C. is high, -L5026; Specific Gravity 

 at 16°C. 0-9257 (H. G. Smith). 



Hab. — Queensland, Tandawanna (C. W. Chapman), Newinga, 

 Goondiwindi (C. W. Chapman), Cometville and Emerald (rare; 

 P. A. O'Shanesy, in Herb. Melb.); Expedition Range (Thozet, 

 in Herb. Melb.). 



