241 



127. Eucalyptus rubida. 



(H.D. & J.H.M., Proc. Linn. Soc., N.S.W., 1899, p. 456, t. XL.) 

 Candle Bark. 



Systematic. A tall tree with a smooth bark falling off in ribbons. Abnor- 

 mal leaves from nearly orbicular to nearly oblong, often emarginate or retuse, 

 opposite, sometimes stem-clasping and even more or less connate, very glaucous 

 in general. Normal leaves dull green on both sides, narrow lanceolate, of thickish 

 texture; the intramarginal vein scarcely removed from the edge, the laterial veins 

 roughly transverse ; often glaucous, sometimes very much so. Buds ovoid, 

 axillary, in threes and cruciform, sessile, or with very short stalklets ; the stalks 

 commonly under J inch long, round, rarely flattened ; operculum nearly hemi- 

 spherical when ripe, hardly pointed, rather shorter than the calyx, conoid when 

 less ripe. 



Fruit. Top-shaped or ovate, spreading at the 

 orifice, sometimes nearly hemispherical, 

 shiny or glaucous ; rim broadish and con- 

 vex ; valves three or four, and exserted ; 

 usually about 2 to 3 or 3 to 4 lines in diameter. 



It is not unlike some forms of E. Stuartiana, var. 

 lanceolata. 



Habitat. New South Wales, Berrima, to the high tableland 

 of the Monaro from Braidwood to Victoria. 



REMARKS. This is the tree that the late Dr. WoolLs, in his Flora of Australia, confounded with 

 E- divcrsicolor, Desf., owing, no doubt, to the variation in'the form of its foliage. 



ESSENTIAL OIL. As this species has an extensive range, it was thought 

 desirable to obtain material for distillation from several localities in order to 

 test the constancy of results. Leaves and terminal branchlets were obtained 

 from the following localities in New South Wales : (i) Bungendore, June, 1898 ; 

 (2) Bungendore, March, 1899; (3) Wingello, October, 1900; and (4) Cooma, 

 November, 1913. All the material consisted of mature lanceolate leaves. The 

 oil of this species consisted principally of pinene, phellandrene, cineol, and the 

 sesquiterpene. Esters as a rule were not pronounced. Phellandrene was only 

 present in small amount, being rather more abundant in the Cooma material. 

 All the samples were insoluble in 10 volumes 80 per cent, alcohol. The general 

 results obtained with the several oils are recorded in the following table : 



