312 



On rectification, the usual amount of acid water and volatile aldehydes 

 came over below 173 C. (corr.); the aldehydes however, were much less pungent 

 ,and objectionable than are those from the oils of the pinene-cineol groups. Between 

 173-198, 78 per cent, distilled; the temperature then rose quickly to 265, only 

 I c.c. distilling; between 265-282, 17 per cent, distilled. These fractions gave 

 the following results : 



First fraction, sp. gr. at 15 C. := 0-8713; rotation a D - - 29-5; refractive 



index at 20 = 1-4796. 

 Second ,, ,, ,, = 0-9421 ; rotation not taken ; refractive 



index at 20 = 1-5062. 



The cineol was determined in the first fraction by the resorcinol method ; 

 when calculated for the crude oil the result was 21 per cent. Other substances 

 than cineol were evidently absorbed, as only about 10 to 12 per cent, was 

 indicated by other methods. The large amount of eudesmol caused the high- 

 boiling fraction to soon become solid, and this peculiarity is quite a distinguishing 

 feature between the oil of this species and that of E. Sieberiana. 



168. Eucalyptus stellulata. 



(Sieb., in DC. Prod., iii, 217.) 

 Lead Gum, Black Sally. 



Systematic. Generally a moderate-sized tree, but on the Monaro, N.S.W., 

 attains a diameter of 4 to 5 feet ; bark smooth, lead-coloured, but passing through 

 various shades into green ; sometimes persistent some distance up the stem of 

 large trees, when it is rough and thick, almost like that of an " Ironbark." 

 Abnormal foliage glaucous, leaves ovate, shortly acuminate, tapering at the base, 

 thin, 3 to 4 inches long, six- or seven-nerved. Normal leaves mostly ovate, up to 

 4 inches long, broad to lanceolate ; venation marked and characteristic, generally 

 three or more veins radiating from the base and extending almost the whole length 

 of the leaf, and thus indicating phellandrene in the oil. Peduncles axillary, 

 short, with numerous sessile flowers, in stellate clusters. Calyx small, about i to 

 2 lines long; operculum conical, acute. 



Fruit. Pilular, small, sessile in axillary clusters; 

 rim contracted, shining or glabrous ; valves 

 not exserted ; 2 lines in diameter. 



The fruits are difficult to separate from thoss of 

 E. Moorei. 



Habitat. New England Tableland, N.S.W., and into Victoria. 



REMARKS. This is a very marked species, and easily distinguished in the field and herbarium from 

 its congeners by its stellate cluster of buds, its small, almost spherical fruit, and its longitudinal lateral veins, 

 similar to those of E. coriacea, A. Cunn., and E. vitrea, R.T.B. The timber is pale coloured, hard, durable, and 

 seasons well. It occurs on some of the highest and most exposed positions of the Coast Range. The number 

 of common names applied to it is large, but the two given above are the most common. 



