85 



removed from the edge. Oil dots numerous. Peduncles axillary, with few 

 flowers five to seven in the head tonally only three. Calyx hemispherical, 



shortly acuminate. 



4* 



Fruit. Hemispherical to oblong; rim. togethei 

 with the valves, domed and leaving only a 

 slight aperture to the ovarj , or i1 is 

 sometimes thin and the valves exserted and 

 wide-spreading. 



Very difficult to determine from E. viminalis in most 

 instances. The specimen depicted shows the / 

 or truncate rim form 



Habitat. Mount Vincent, Hford; Oberon-road, O'Connell; 

 Southern-road, Wingello; along the main Western- 

 road, Blackheath, and Mounl Victoria, New South 

 Wales. 



REMARKS, in the field this tree might be confounded with /■'. viminalis, l.abill., or E. hcemaslcma, Sm., 

 a- both these Eucalypts have a smooth bark, which, however, in this species never lias the horizontal (ii 



markings almost invariably occurring on E. viminalis, nor the "scribbles" found It ha almost 



similarly shaped leaves in all it! growth, whilst the 1 malts are narrow, cordate- 



lanceolate, sessile. The fruits differ little from those ot /•.'. viminalis in shape, run. and direction of valves. The 

 trees, too, are not found near water, a obtain almost invariably with / . , but on dry, stony ridges. It 



differs . ies in the constituents of its oil. It resembles E. maculosa, R.T.B., in the shape of the 



fruits, but differs from it in timber and bark. The specific name refers to the copious exudation of a milkv 

 substance from the -tern when the tree is cut at certain seasons oi tie 



ESSENTIAL OIL. Leaves and terminal branchlets tor distillation were 

 obtained al flford, New South Wales, in September, [899. The yield of oil was 

 0-54 per run. The crude oil was red in colour, ami had a turpentine-like odour 

 far from pleasant. Pinene was the chief terpene and phellandrene was absent. 

 Cineol was onbj present in small amount, about ro per cent. Ii is a. terpene oil, 

 and ot little commercial value. The crude oil had specific gravity at 15 C. — 

 0-8826; rotation nil; refractive index at 20 = i-aNas,, and was soluble in ; 

 volumes 80 per cent, alcohol. The saponification number for the esters and free 

 ai nl was 8-56. The presence of cymene was indicated. 



On rectification no less than 90 per cent, distilled between 1(15-188° C. 

 This rectified oil had specific gravity at 15 = 0-8788; and rotation a 1 - 1 < > . 



Mali-rial of this species for distillation was a] obtained froufBraidwood, 

 New South Wales, in o. mber, 1898. The results with this oil were in agree- 

 ment with that distilled from the Ilford leaves. The yield of oil was 0-57 

 per cent. 



On rectification 88 per cent, distilled below c88 C. The crude and rectified 

 oils gave the following results : 



< inde oil. sp. gr. at 15 ('. = 0-8752; rotation nil. 

 Rectified oil ., = 0-8698 ,, 1 0-52 . 



lib- saponification numbei Eoi the esters and tree acid was 11-5. and 

 ii was soluble in 5 volumes 80 per cenl alcohol. 



The mixed oil oi the above had been kepi in the dark, and in Octobei 

 [919, db sample was again am I d. Not much alteration had taken plate in 

 ih< ' haracter ol the oil during the 20 years ii had been stored, with the exception 



