262 



Crude oil was (kirk orange-brown in colour, and had a very rank odour. It con- 

 i.iinrd a large amount of the sesquiterpene. Pinene was present, and phellan- 

 drene also. Only a minute quantity of cineol could be detected in the first fraction. 

 The oil was somewhat viscous, due to the sesquiterpene. It may be mentioned that 

 the viscosity of crude Eucalyptus oils varies much, from that of turpentine to that 

 of olive oil. 



The crude oil had specific gravity at 15 C. = 0-9252 ; refractive index at 

 20 = 1-5008, and was soluble in 1 volume 80 per cent, alcohol. The saponifi- 

 cation number for the esters and free acid was 8-6. 



On rectification, 2 per cent, distilled below 172 C. (corr.). Between 

 172-183 , 25 per cent, distilled ; between 183-250 18 per cent, came over, 

 and between 250-290 , 43 per cent, distilled. These fractions gave the following 

 results : — 



First fraction, sp. gr. at 15 C. = 0-8628; rotation a D 



Second „ ,, ,, = 0-8751 ; 



Third ,, „ „ = 0-9560; 



+ y5 • 



+ 1-2°. 



not taken. 



The oil from this species had little resemblance to that of E. carnea. 



142. Eucalyptus Planchoniana. 



(F.v.M., Fragm. xi, 43, Eucalyptographia, Dec. 4.) 

 A Stringybark. 



Systematic. — A tall tree, with a fibrous bark, much resembling E. obliqua 

 and E. fastigata. Abnormal leaves large, sometimes 1 foot long and 2 inches 

 broad, lanceolate, drying almost "khaki" colour; venation distinct, spreading, 

 intramarginal vein removed from the edge. Normal leaves rigid, lanceolate, 

 falcate, pale-coloured ; venation similar to that of abnormal leaves. Branchlets 

 distinctly quadrangular, almost winged. Peduncles axillary, much flattened, 

 nearly 3 lines broad, with four to six flowers. Calyx tube ribbed, tapering 

 downwards to a short thick pedicel, 4 lines in diameter ; operculum ribbed, 

 conical, obtuse, under 6 lines long. 



Fruit.— Large, shortly pedicellate, irregularly urceo- 

 late and ribbed, contracted towards the 

 narrow or countersunk rim ; * valves deeply 

 sunk ; slightly over 1 inch long and 9 lines 

 in diameter. 



The frifits are not unlike some of the Bloodwoods, 

 such as E. calophylla, a large form of E. eximia or 

 E. intermedia. 



Habitat. — Woodburn and Evans River, New South Wales; 

 Queensland. A species very limited in its 

 geographical distribution. 



ESSENTIAL OIL. — Leaves were obtained from Woodburn, N.S.W., in 

 August, 1900. The yield of oil was very small, only 1 J oz. being obtained from 

 675 lbs. of leaves, equal to 0-014 P er cent. 



