or very short panicles, often so reduced as to appear like a single, compact, 

 irregular umbel, each peduncle with three to six flowers on short slender pedicels. 

 Calyx oblong, 3 lines long ; opcrculum shortly domed. 



Fruit. Cylindrical or urn-shaped; rim rounded or 

 thick, the capsule sunk; 3 to 6 lines long 

 and 3 to 4 lines broad. 



The fruits of this species are almost identical in shape 

 and size with those of E. trachyphloia, but with a 

 thicker rim. 



Habitat. New South Wales and Queensland. 



REMARKS.--The timber is of excellent quality, and the tree is remarkable for its drought-resisting 

 qualities. The tesselatcd nature of the bark gives character to the species in the field. The leaves of this species 

 are greedily eaten by sheep, and the trees are consequently pollarded or cut down for fodder. " Carbeen " has a 

 dark blue bark, whilst E. trachyphloia is a pale yellow in colour. The leaves of this species are much narrower 

 than those of E. trachyphloia and its timber is dark coloured, resembling Walnut (Cryptocarya Palmerstoni) or 

 Black Bean (Castanospermum australe], and is equally as hard. 



* 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 obtained from Narrabri, N.S.W., in July, 1901. The yield of oil was 0-16 per 

 cent. The crude oil was of a dark colour, and had an odour, when diffused, 

 strongly reminding of cymene. As the characteristic oxidation products of 

 cymene were obtained with the oil of E. melanophloia, it is very probable that 

 cymene is a constituent in the oil of the present species. Phellandrene does 

 not occur ; pinene was proved by its chemical combinations and reactions. A 

 small quantity of cineol was found, but not exceeding 5 to 10 per cent. 

 The presence of the sesquiterpene (aromadendrene) was pronounced. The 

 dark colour of the oil was .due to the phenols acting on the iron removed 

 from the still by the action of the free acids in the oil. The colour was readily 

 removed by agitating the oil with a dilute solution of soda ; the remaining oil 

 was then nearly colourless, so that the optical rotation could be readily taken. 

 The venation of the mature lanceolate leaves of this species indicates the 

 predominance of pinene in the lower boiling terpenes, thus being in agreement 

 with the oils of the genus Angophora. (For the oils of the Angophoras see paper 

 by one of us, Proc. Roy. Soc., N.S.W., Aug. 1913.) 



The crude oil had specific gravity at 15 C. = 0-8757 ; optical rotation, 

 a D + 8-6 ; refractive index at 20 = 1-4824, and was not soluble in 10 volumes 

 80 per cent, alcohol. 



On rectification a few drops of acid water with some aldeh}'des came over 

 below 160 C. (corr.). Between 160-172 C., 47 per cent, distilled; between 

 172-214, 34 per cent, came over; the boiling point then rapidly rose to 240, 

 between which temperature and 265, n per cent, distilled. These fractions 

 gave the following : 



First fraction, sp. gr. at 15 C. = 0-8642 



rotation H D + 6-8. 



+ 11-4. 

 to the right. 



Second ,, ,, ., 0-8673 



Third ,. ,, ,, 0-9301 



There is a constituent in the higher boiling portions which has a rotation 

 to the right, but it. was not isolated. The saponification number for the esters 

 and free acids was 6-2. The volatile aldehydes were much less distinct in this 

 oil, than in those belonging to the cineol group. The oil of this species is a 

 terpene one, and of little commercial value. 



