271 



I 



eventually obtained; one was insoluble in alcohol and ether and sublimed, the 

 other was soluble in hot water, in alcohol, and in ether, and when purified, melted 

 at 176 C. The acids thus indicated were p-toluic and terephthalic. 



The above sample had been stored in the dark, and in October, 1919, was 

 again analysed. Scarcely any alteration had taken place in the character and 

 constituents of the oil during the eighteen years it had been kept, and there was 

 no increase in cineol. 60 per cent, distilled below 190 C. 



The crude oil had sp. gr. at 15 C. -= 0-9004 ; rotation D 20-4 ; refractive 



index at 20 = 1-4897. 

 The rectified portion ^ 0-8648 ; rotation D -- 35-6 ; refractive 



index at 20 = 1-4774. 



The cineol was determined by the resorcinol method in the rectified portion : 

 when calculated for the crude oil, the result was 5 per cent. 



148. Eucalyptus ccerulea, sp. nov. 



Stunted Ironbark. 



Systematic. Only a medium-sized tree, with a black-furrowed bark, 

 glaucous throughout, except the bark. Leaves mostly ovate-lanceolate, shortly 

 acuminate or rounded, to lanceolate, always glaucous, coriaceous, up to 4 inches 

 long ; intramarginal vein not much removed from the edge, lateral veins running 

 at an angle of 45 from the mid-rib ; petioles slender, up to J inch long. Buds up 

 to six in umbel, each on a slender pedicel, the common peduncle very slender, 

 nearly 9 lines long; calyx tube tapering very gradually to the pedicel; oper- 

 culum conical, acuminate, much shorter than calyx tube. 



Fruit. Acuminate, pyriform, contracted at opening, 

 on slender pedicels ; rim truncate, slightly 

 concave, sometimes much raised towards the 

 centre, having a domed appearance and a 

 sharp-edged rim ; valves deeply inserted ; 

 up to 5 lines long and 4 lines broad. 



The nearest resemblance to these fruits amongst 

 Eucalypts are E. melanophloia or E. Fergusoni. 



Habitat. -Murrumbo, New South Wales. 



REMARKS. -In the first Edition, this species was placed by us as Bentham's (B. Fl. vol. iii, p. 210) 

 variety of E. sideroxylon,i.e. va.i.pallens, but the physical, field, and chemical characters are sufficiently different, we 

 think, to raise it to specific rank. It appears to be quite restricted to the locality where it was first discovered 

 by us, as no other specimens have come to hand. It is very picturesque, with its silvery leaves, gnarled branches, 

 and very black, deeply furrowed bark. It never attains a large size, being of quite stunted, gnarled growth, and 

 the timber is not valued, as the tree is nearly always decayed in the centre. Locally it is always regarded as 

 distinct from E. sideroxylon. 



We, however, are convinced now that it is not Bentham's var. pattens of E. sideroxylon, which Mr. Maiden 

 has since raised to specific rank under the name of E. Caleyi, Proc. Linn. Soc. N.S.W., XXX, 512 (1905). A species 

 further dealt with by this author in his Crit. Rev. Euc., vol. ii. p. 95 (1914). and For. Flor.. vol. vi, p. 86 (1917)- 



It will readily be seen by the fruits C. and E. Plate 207 of the later work that they differ considerably from D, 

 same plate, which latter are from Rylstone, Murrumbo, and were given to Mr. Maiden by us under the name of E. 

 sideroxylon, var. pattens. E. Caleyi is a tall Ironbark, whilst this species is quite a stunted, gnarled tree, and is not 

 known as an Ironbark locally, as the timber possesses none of the qualities of an Ironbark, and the only resemblance 



