BY CUTHBERT HALL. 569 



Peduncles axillary, 4-6 lines long, bearing few flowers, 4-7. 



Buds on a short pedicel, l|-2 lines long; calyx-tube 1^"' long; 

 operculum hemispherical and domed or conical and shortly 

 acuminate, much longer than calyx-tube. 



Fruit hemispherical, 3 lines in diameter, rim rounded to the 

 dome of the ovary or base of valves, which are free from the rim 

 and often recurved. 



2'imber. — A pale pink-coloured wood, of little economic value, 

 as far as seen; it is soft, seasons badly, and is attacked by borers 

 in the young trees, so far as known. Perhaps now that the 

 species is differentiated, more favourable specimens may be dis- 

 covered. 



Oil. — Mr. H. G. Smith reports that the yield of oil from this 

 species was 0-57 per cent., steam-distilled from material collected 

 as for commercial oil-distillation. The crude oil was but little 

 coloured, and had an odour I'esembling that of the better crude 

 oils of the Eucalyptol-pinene class. The oil consisted principally 

 of Eucalyptol; the terpene was dextro-rotatory pinene and phell- 

 andi'ene was quite absent. The specific gravity at 15°C. was 

 0-9223; rotation aD-l-2-7°; refractive index at 18°C. = 1-46291 . 

 It was soluble in 1 -2 volumes 70 per cent, alcohol. The saponi- 

 fication number for the free acid and ester was 4-6, representing 

 only a small amount of ester. The usual volatile aldehydes 

 occurring in these oils were detected. The amount of Eucalyptol 

 in the crude oil, determined by the resorcinol method, was 78 per 

 cent. The essential oil from this Eucalypt is one of the best of 

 the Eucalyptol class, but, unfortunately, the yield is too small to 

 allow the species to be worked commercially. 



Remarks. - This species has evidently been confused with E. 

 tereticornis, a tree common in the neighbourhood in which it 

 grows. The fruits of this tree are quite distinct from those of 

 E. tereticornis and its varieties, for the rim, instead of being 

 domed, is rounded like the edge of a pudding-basin, a feature 

 that characterises it from any other species {vide Plate Ix., fig.5). 

 The hemispherical fruits might suggest A", resini/era, but the 

 bark is smooth, and the timber quite distinct from that of this 

 species, as is also the oil. 



