calyx tube almosl sessile, prominentl} ribbed, tetragonal, tapering graduall} to 

 the base; operculum smooth, conical, reddish in colour, about one-third as long 

 as the calyx tube. 



%0 



Fruit. I'm shape is perhaps the nearesf term 

 th.it describes the form, foui to five 

 prominent raised ribs giving it an angular 

 appearance, shining : run t bin circulai 

 valves deeply inserted; aboul 5 lines i 

 and 3 lines wide. 



These fruits are so nearly in shape to thos, of] 

 phloia that it is just possible this may eventually pi 

 to be the southi rn form of tli it ■ .■■■■ 



Habitat. Victoria, South Australia, Western Australia. 



REMARKS. At the writing oi our first edition, tins species had not been I b u noi the oil 



at that lime obtainable. K i ently Mr. Walter < i i 1 1 supplied material for this investigation, and so its 

 ion now presents no difficulty. 



Plate XXXI 



EUCALYPTUS CALYCOGONA. Turcz. 

 G< lOSE B.ER.RY MAIXEE. 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 forwarded by Mr. Walter Gill, the Conservator of Forests, South Australia. The 

 material was collected at the Parilla Forest Reserve, South Australia, in 

 October, 1919. The yield oi oil was 1 per cent. 



The crude oil was oi an orange brown colour, and had an odour similar to 

 those of the cineol-pinene group ; volatile aldehydes were not pronounced. 

 The constituents present were dextro-rotatory pinene, cineol, alcoholic bodies, 

 esters and some sesquiterpene. Phellandrene was no1 present. 



The erudc oil had specific gravity at 15 C. = 0-9152; rotation a B + 7-6°; 

 refi Lctive index at 20 = [-4659, and was soluble in 5 volumes 70 per cent. 

 alcohol. The saponification number for the esters and free acid was ~\]. After 



