88 



Small-sized trees, springing from an enormous bulging and spreading stock, 

 irregular in shape, of a diameter from 4 to 10 feel or more. On the lower levels 

 tlir larger trees grow straight, with a smooth, light brown and very thin bark; 

 smooth within 1 or _' Eee1 of the ground. Leaves somewhat shining and of the 

 same appearance on both sides, the umbels regularly three-flowered. Calyx 

 angular, sessile; operculum much constricted, rostrate, angular. 



Fruit. Inclined to be hemispherical in shape, 

 occasionally ribbed; rim broad, outer edge 

 recurved; valves prominent, and exserted; 

 under .} inch in diameter. 



77 is probably only a depauperate form of E. 

 globulus. 



Habitat. — Sugar Loaf Mountain, Braidwood, N.S.W. 



ESSENTIAL OIL. — Leaves and terminal branchlets for distillation were 

 obtained from Monga, New South Wales, in August, 1898. The yield of oil 

 was C33 per cent. The crude oil was but little coloured, and had an odour 

 resembling the crude pinene-cineol Eucalyptus oils generally. It contained no 

 phellandrene, but pinene and cineol were both present. Eudesmol was detected 

 by crystallisation. The third fraction consisted largely of the sesquiterpene. 



The crude oil had specific gravity at 15 C. = 0-8895, rotation a D + 4-05°; 

 refractive index at 20 ° = 1-4784, and was soluble in 4 volumes 80 per cent, 

 alcohol. The saponification number for the esters and free acid was 9-98. 



On rectification 2 per cent, distilled below 170 C. (corr.). Between 

 170-183°, 78 per cent, distilled; between 183-240°, n per cent, came over, and 

 between 240-280°, 7 per cent, distilled. These fractions gave the following 

 results : — 



First fraction, sp. gr. at 15° C. = 0-8789; rotation a D + 4-25°. 

 Second ,, ,, ,, = 0-8835; >> a D + 0- 8°- 



Third ,, ,, ,, = 0-9432; ,, not taken. 



The cineol, determined by the phosphoric acid method in the large fraction 

 was 24 per cent., indicating about 20 per cent, in the original oil (O.M.). 



41. Eucalyptus viminalis, var. a. 



(R.T.B. & H.G.S., in Euc. and their K>s. Oils, 1st. Edit., 190?, p. 91.) 



Systematic. — A tree apparently similar in most morphological characters 

 to the type. 



Fruit.— The fruits, however, are less pedicellate, 

 often sessile, and not quite hemispherical, 

 nor are the valves quite so exserted, nor 

 the mouth of the capsule so expanded 

 as in the type. The fruits in dried 

 specimens are almost invariably affected 

 with a fungoid growth on the inner sur- 

 face of the valves. 



Habitat. — Crookwell District, New South Wales. 



