a slender pedicel aboul 5 lines in length, as long or longer than the common 

 axillary peduncle. Calyx tube broadly conical, 01 semi ovate; operculum almost 

 the same length as calyx tube, someti - shorter, acuminati 



Fruit. truncate or hemispherical, semi-ovate; rim 

 countersunk after the primary one has 

 bei ome detached ; valves nol exserted ; 

 abi 'in g lines long and 1 lines br< tad, 



bhologisls have failed to distinguish these from E. 

 sideroxylon, so that the two trees onfounded 



ystematists from herbarium material. The k 

 spherical me closely to thost 1 / E. pilularis. 



Habitat. Victoria and South Australia. 



REMARKS. The systernatii position oi ipally 



picacity of Dr. Woolls He describ I Li ic, N.S.W., vol 19, the differences 



en this species and its congi li, on morphological grounds, it nfounded 



in the past. The two ai qi ii tind in most physical characters except the fruits, which are uncommonly alike. 



ESSENTIAL OIL. Material consisting "I the leaves and terminal branch- 

 lets was forwarded for distillation from the Kingscote end oi Kangaroo Island, 

 in June, k;ii. This species grows somewhal plentifullj on Kangaroo Island, 

 and is stated to have both red and white flowers. It seems to be generally 

 known throughoul the island as " Blue Gum." 



The leaves, after steam distillation, were 'quite red in colour, resembling 

 in this respect those of the " \<vd Mallee," and a few other species. The yield 

 dt oil was 0-78 per cent. The crude oil was reddish in colour, due to the influence 

 nt iron from the still acting on the phenols. The odour was that given by oils 

 belonging to the cineolrpinene class, and volatile aldehydes were pronounced. 

 No indication was given for the aldehyde aromadendral. Phellandrene does 

 not occur in the oil of this species. The terpenes present were pinene and 

 limonene; probably cymene occurs also. A fairly large fraction was obtained 

 boiling above l6o .which consisted principally of the sesquiterpene. The amount 

 . 't esters was small. 



The crude oil had specific gravity at 15 C. = 0-8987; rotation a D + 9-2 . 

 refractive index at 20 = 1-4711; and required 1 volume oi 80 per cent, alcohol 

 t<i form a clear solution. The saponification number for the esters and tree acid 

 was 3-8. 



On rectification a few drops of acid water, together with some aldehydes, 

 came over below 105 (.'. corr.). Between 165 172°, 34 per cent, distilled; 

 between 172 225 , 50 per cent, came over, and between 225-276°, 13 per cent, 

 distilled. These fractions gave the following results : 



Firs! traction, sp. gr. at 15 C. =0-8815; rotation a D + 15-9 ; refractive 



index at 20° = 1-4650. 

 Second ,, ,. ,, =0-8921; rotation a, +5-8°; refractive 



index a1 20 = r- t.667. 

 Third ,, 0:9365; rotation inactive; refractive 



index .11 20 1 [.964. 



The cineol was determined by the resorcinol method in the rectified portion 

 and calculated for the crude oil; the result from two closely-agreeing determin 

 ations was \2 per cent. 1>\ the rapid phosphoric acid method the amount 

 was 27 ] '■ in the ' rude oil. 



