i?7 



the operculum is more oi less pointed a1 the top, and thus assuming a somewhal 

 conical shape; up to seven or eight flowers in the umbel, peduncles flattened 



Fruit. Shining, nearly globular, urceolate in 



young fruit, the neck being almosl Lost in 



the mature fruit ; rim sharp; valves usually 



Ave and verj depressed; usually 5 lines in 



in. tei ,oi a little less. 



ire is required not to confound the jntilx with those 

 7 I -in. M and I obtusiflora or even I m u ulata 



Habitat. Mount. iin< in the Clyde district, Tantawanglo, Milton, 

 N.S.W. 



REMARKS. ["he affinity oi this species in I rium is closest with E. obtu md It 



nously from these in bein is oi little 01 no .1 i > 1 ti rmining tins 



ies, for the dried material is al itical wit h thosi ml the two are mallee and the oth 



.1 suitabl iin fntit dissimilar in shape to thosi of E. 

 maculata. 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 obtained from Monga, N.S.W., in August, 1898. The yield of oil was 0-98 per 

 cent. The crude oil was but slightly coloured, resembling in this respect those 

 of /•.. dives, E. radiata, &i The oil consisted largely of phellandrene, and 

 pinene was present in small amount. Cineol occurs, but not more than 5 or ro 

 per cent, in the crude oil. Crystallised eudesmol was detected, and the third 

 fraction contained it in some quantity. The peppermint constituent was also 

 present. The esters wen- no1 pronounced. 



The crude oil had specific gravity at 15 C. =0-8687; rotation a D - 27-5°; 

 refra< tive index at 20 = 1-4851, and was insoluble in 10 volumes So per cent. 

 alcohol. The saponification numbei for die esters and free acid was 3-7. 



On rectification, 1 per cent, distilled below 172 ' C. (corr.). Between 172 - 

 183°, 79 per cent, distilled; between 183-224°, 12 per cent, distilled, and between 

 221 -7> s °. 5 per cent, distilled. These fractions gave the following results : 

 First fraction, sp. gr. at 15' C. = 0-8590; rotation a D -- 31-6°. 

 Second „ ,. ,, = 0-8725; ,, a D - 26-9°. 



Third ,, ,, ,, = 0-9188; ,, not taken. 



The third fraction also contained a constituent which had a strong lemon 

 odour, and as an aldehyde was present, it is probable thai citral occurs in small 

 amount in the oil of this Eucalypt. 



The above sample of oil had been stored in the dark, and in September, 

 1919, was again analysed. [Tie specifit gravity had increased a little, and the 

 optical activity diminished also. This appears to be due to the alteration in 

 the phellandrene. Perhaps the cineol had also increased a little, but altogether 

 not much altera 1 ion had tak< n place during the twenty-one years the oil had been 

 kepi . 8: pei cent, distilled below [90 * . 



rhe crude oil had sp. gr. a1 15 C. = 0-8862; rotation a, - 157 ; refractive 



index at 20° = 1-4871. 

 rhe rectified portion ,, =0-8655; rotation a D — 26-1°; refractive 



index at 20 =1-4811. 

 The 1 ineol wa - di termined by the resorcinol method in the rectified portion; 

 when calculated for th crude oil the result was 17 per cent. As piperitone was 

 present a ketone d( termination wa- made in the rectified portion, with the result 

 that 6 per cenl wa absorbed. Thus about 12 pei cent, of cineol was present in 

 the oil ot this spei ii 



