325 



lateral veins distant, spreading oblique, inclined at an angle of 30 or less to the 

 mid-rib. Peduncles angular, 5 lines long, bearing umbels of six to nine flowers. 

 Calyx tube 2 lines long, turbinate, contracted to a short pedicel ; operculum 

 hemispherical, shortly pointed. 



Fruit. Hemispherical on short slender pedicels ; 

 rim domed ; valves slightly exserted ; 2\ 

 lines long and 3 lines in diameter. 



E. Rossii or E. maculosa are perhaps the nearest 



affinities morphologically. 



Habitat. Toongabbie, N.S.W. 



ESSENTIAL OIL. Material of this species was obtained from near Parra- 

 matta, N.S.W., and forwarded for distillation by Dr. Cuthbert Hall. The yield 

 of oil was 0-7 per cent. 



The crude oil was almost as viscous as castor oil, and had little resemblance 

 to the ordinary Eucalyptus oils of commerce. It contained a considerable amount 

 of the sesquiterpene, and in this respect resembled the oil of E. nova-anglica 

 and a few others. The oil at our disposal did not permit of complete analysis, 

 but it is possible that the active terpene was dextro-rotatory pinene. Cineol 

 was practically absent, and phellandrene could not be detected. _The oil was but 

 little coloured and had a not unpleasant odour. The phenols gave the reaction 

 for tasmanol, but the crystalline phenol australol appears to be the most abundant. 



The crude oil had specific gravity at 15 C. = 0-9469 ; rotation a D + 4'8 ; 

 refractive index at 20 = 1-4989, and was insoluble in 10 volumes 80 per cent, 

 alcohol. The saponification number for the esters and free acid was only 2, 

 so that esters were practically absent. Some of the oil was distilled, but only 

 2 per cent, came over below 200 C. ; traces of cineol could be detected in this 

 portion, the remainder consisting largely of the sesquiterpene. 



i 



1 75. Eucalyptus ligustrina. 



(DC., in Prod., vol. iii, p. 219.) 



Systematic. A low shrub, a few feet in height. Abnormal leaves ovate 

 or oblong, thick and mucronate, about \ inch in length, shortly petiolate or alter- 

 nate. Normal leaves lanceolate, thick, coriaceous, shining, acuminate, usually 

 falcate and unequal at the base; venation not prominent, intramarginal vein 

 not far removed from the edge, lateral veins inclined at about 30 to the mid-rib. 

 Flowers sessile in heads of about nine on axillary or lateral, angular peduncles, 

 about 3 lines long. Calyx tube under 2 lines long, conoidal, twice as long as the 

 scarcely pointed, semi-ovoid operculum. 



Fruit. Compressed, globular ; rim narrow, flat or 

 somewhat convex, reddish ; valves scarcely 

 exserted ; about 2 lines long and 3 lines in 

 diameter. 



Habitat. Blue Mountains, New South Wales. 



