159 



The cineol, determined by the resorcinol method in the portion boiling 

 below 190 C., and calculated for the crude oil, was 50-3 per cent. 



When it was found that the ester in the oil of this species was a low-boiling 

 one it was decided to revert to the original oil from the Tasmanian trees ; 

 fortunately the fractions had been preserved. The saponification number 

 for the esters in the first fraction was 45-8, so that here again the greater 

 portion of the esters was the low-boiling one, and from the odour and other tests 

 was evidently butyl-butyrate, as in the oil from the New South Wales material. 



85. Eucalyptus costata. 



(R. Br.) 



(Desc. by Schiu., in Walp. Report., ii, 925, 1843, under E. angitlcsa, and by Mueller under 



Brown's name, Trans. Vic. Inst., 1854, 33, and recently by Luehmann, Vic. Nat., vol. 



xiii, p. 147, 1897, under the name of E. torquata.) 



Systematic. A small tree, reaching a height of 20 to 30 feet, with a rough 

 bark. Leaves lanceolate to broad lanceolate, acuminate, often uncinate, thick, 

 coriaceous and shining, usually under 5 inches long ; venation very indistinct, 

 except in the young foliage, when the vascular bundles are marked by grooves 

 on the leaf surface, intramarginal vein removed from the edge, lateral veins 

 more or less spreading, inclined at about 30 to the mid-rib. Peduncles 

 axillary or lateral, flattened, about 9 lines long, each bearing an umbel of 

 three to seven flowers. Buds shining, with seven to ten ridges, shortly pedicellate ; 

 calyx tube urn- or bell-shaped, 4 to 5 lines long ; operculum 4 lines long, at first 

 domed and slightly greater in diameter than the calyx, in some cases the upper 

 half abruptly contracted into a narrow cone. 



Fruit.- Truncate-ovoid, inclined to be urn-shaped, 

 more or less longitudinally ribbed, shining; 

 rim convex, the periphery concave due to 

 the prominent groove; valves not ex- 

 serted; from 5 to 10 lines long and 4 to 7 

 lines in diameter at the widest part. 



A very characteristic fruit and one which has little 

 resemblance to E. incrassata of Western Australia, 

 although it has sometimes been confounded with it, 

 the pronounced ribs readily distinguishing the two 

 species. 



Habitat. Victoria, South Australia and Western Australia 

 (Coolgardie, Luehmann), and South West of New 

 South Wales. 



REMARKS. The specimen? which have come under our notice, and the published localities of others, show- 

 that this species has a wide range, ar.d it would appear now that it has been recorded under several specific rames 

 We have given the authorship to Robert Brown, who collected and gave it the name E. costata, although Scharer 

 described it later, '843. under E. angulosa. Mueller described it, 1854, Trans. Viet. Inst., p. 33, under Brown's 

 name. The smaller fruited variety was described by Luehmann under the name of E. torquata, Vic. Nat., vol. xiii, 

 p. 147, 18^7. To add to the confusion the whole of these have been regarded as E. incrassata and its varieties, 

 whilst 'the material collected by Labillardiere, and F, v. Mueller in Western Australia prove that E. costata is nqt 

 that species. 



