290 R. T. BAKER AND HENRY G. SMITH. 



one of the shape of the mature fruits of E. Deanei. As they 

 mature, this shape passes gradually away, the calyx gradu- 

 ally tapering into a pedicel, very rarely is the fruit hemi- 

 spherical. 



On a cortical classification it would be placed with the 

 44 Stringybarks," or between them and the ''Peppermints," 

 but the timber may be classed as one of the "Ashes," such 

 as E. regnans, E. oreacles or E. Delegatensis. 



The large oblique suckers are not at all unlike those of 

 E. obliqua, or even the above three species. 



At Tenterfield it is found growing amongst such 

 " Stringybarks" as E. obliqua and E. laevopinea. 



Essential Oil. — Leaves of this species were obtained from 

 Tenterfield, and distilled 14/1/10. The material was col- 

 lected as for commercial distillation, so that the yield is 

 an average one. The crude oil was of a light yellowish 

 tint, and had a secondary odour of peppermint, due to a 

 small quantity of piperitone. The presence of this con- 

 stituent, and the absence of aromadendral, distinguish this 

 oil from that of E. obliqua. A small amount of eudesmol 

 was present at the time of distillation. The oil of this 

 species consists principally of phellandrene, and pinene 

 seems to be quite absent. Eucalyptol was detected in the 

 portion distilling at about 176° 0., but it was very small in 

 amount. The oil of this species agrees with those of the 

 members of the "Mountain Ash" group of Eucalyptus, but 

 in its general characters more closely approaches, perhaps, 

 that of E. oreades than any of the others. The following 

 results were obtained with the crude oil : — 



Yield of oil per cent. ... ... ... = 0*851 



Specific gravity at 15° C = 0*8804 



Rotation a D ... ... ... ...= — 25*8° 



Refractive index at 18° C = 1*4856 



Scarcely soluble in 10 volumes 80 per cent, alcohol. 

 Saponification number for ester + free acid = 7*6. 



