684 SOME NEW SPECIES OF EUCALYPTUS, 



In colour of timber and bark it appears to stand apart from 

 the western " Boxes," sueh as E. Woollsiana, E. conica, Deane & 

 Maiden, E. albens, Miq., but in fruit and shape of leaves it 

 resembles E. populifolia and E. polyanthema, Schau., whilst it 

 only approaches E. conica in the shape of the fruit. 



The leaves are thinner than those of E. populifolia, and have 

 not the lustre so distinctive of that species. 



It differs also from this latter species in the shape of its fruits, 

 and in its timber and oil. 



E. quadrangulata, Deane & Maiden, has a lighter-coloured 

 timber, sessile fruits with extended valves, and lanceolate leaves. 



Timber. — It is well described by Dr. Woolls (loc. cit.). No 

 doubt owing to its good qualities it has besen extensively cut by 

 timber-gettersj as it is quite rare now in its original habitat 

 (Nepean), but is more plentiful at Thirlmere. It is worthy of 

 propagation. 



Oil. — The yield of oil from this species is -294 per cent. It 

 contains much phellandrene and but a minute quantity of 

 eucalyptol. In constituents and characters this oil differs but 

 little from that obtained from " Red Box," E. ovalifolia, Baker, of 

 Rylstone. The specific gravity of the crude oil at 15° C. is -8805. 

 Specific rotation of crude oil [a] jy = - 14-2°. The lsevo-rotation 

 is due to phellandrene. It is not a commercial oil. The amount 

 of ester and free acid are small in this oil, consequent!} 7 the crude 

 oil is not very dark-coloured, the red colour of crude eucalyptus 

 oils being due to the presence of a minute quantity of iron from 

 the stills being dissolved in the free acid occurring in the oils. 

 The colour is removed by agitating with potash. 



Eucalyptus Woollsiana, sp.nov. 

 "Mallee Box." 



(Plate xliii.) 



A large tree up to 80 feet high, and more than 3 feet in 

 diameter. Bark persistent half-way or more than half-way up 

 the trunk; smooth, chiefly of a rich brown colour. 



