205 



veins oblique. Peduncles axillary, aboul 3 lines long, bearing umbels oi five 

 to ten flowers. Buds clavate, tapering to a shorl pedicel; operculum depressed, 

 hemispherical, often umbonate. 



Fruit. Pyriform, contracted at the orifice oi 5om< 

 times hemispherical, shortly pedicellate, 

 more or less shining; rim red, scarcelj 

 domed, truncate, or slightlj countersunk 

 when immature; valves scarcelj exserted; 

 _• to 3 lines long, and z\ lines in diameter. 



The fruits might be described as a slightly larger form 

 of the trui E. amygdalina, and next to th s . I dives. 



Habitat. Tasmani 1 



REMARKS. One of the easiest oi "Gum" trees to be identified in the field, for the specific name is a 

 very suitable one, the leaves being more lunar than obtains in most species. 



Our giving the au1 of this species to A Cunningham is challengi I by J. H. M Soc Tas , 



[914,] think that no newdata have been broughl to light we retain it foi A ( unningham; vide our 



1 pei on " Tasmanian Eucalypt ," Ro) Soi 1 .1 , [912. 



ESSENTIAL OIL. Material lor distillation was obtained from The Springs 

 Mt. Wellington, Tasmania, in January, 1912, at the time of yecr when a 

 maximum amount of oil might be expected to occur. The yield oi oil was 

 1-8 per cent. The crude oil was reddish in colour, and had a peppermint odour, 

 due to the piperitone present. It contained much phellandrene and a considerable 

 amount of cineol. I'liiene was practically absent, or present only in traces. 

 The specific gravity of the crude oil at 15 C. = 0-9096; rotation <f„ 10-2°; 

 refractive index at 20 C. = 1-4677; and was soluble in (> volumes 70 per cent. 

 ilo »hol. 



On rectification, only a few drops oi acid water and volatile aldehydes 

 • ante over below 173 C. < corr. . at which temperature the oil commenced to 

 distil. Between 173-188 , 82 per cent, distilled ; between 188 290 , 10 per cent, 

 distilled, the greater portion 7 per cent, above _><>o . These fractions gave the 

 following results : — 



First fraction, sp. gr. at 15 ('. = 0-8987; rotation a D 12 ; refractive 



index at io° = 1-4637. 

 Second ,, ,, .. 0-9501; rotation a B + 32 ; refractive 



index at 20 = 1-4887. 



There was evidently a heavy, high-boiling constituent in the oil of tins 

 species, winch had a right rotation, but it was not isolated; it was evidently the 

 non-crystallised form of eudesmol. The saponification number lor the esters 

 and free acid in the crude oil was 5-8. 



The cineol was determined in the first fraction by the resorcinol method ; 

 when calculated lor the crude oil the result was 52 per cent. By the phosphoric 

 acid method it was 46 per cent. 111 the crude oil. 



* 



Material oi this species was collected at little Swanport, Tasmania, in 

 lune, 1908. The oil distilled from tin- agreed in general characters and cor 

 stituents with the above. The yield oi oil was 1-38 per cut. Specific gravity 

 at 15 C. = 0-9036; rotation (,„ 9-9 , refractive index at 20 = 1-4705, and 

 was soluble in 7 volumes 70 per cent alcohol. Below to; ( . 77 per cent. 

 distilled. The cineol was determined in this fraction l>\ tin- resorcinol method; 

 when calculated for the crude oil the resuli was 51 per cent. 



