80. Eucalyptus Morrisii. 



(R.T B., Proc. Linn. Soc., X.S.W., 1900, p. 312, t. XVIII). 

 Grey Mallee. 



Systematic. A "Mallee" of rather dense growth, or somewhat spreading; 

 usually about 15 feet high, or somewhat higher; stems 2 to 3 inches in diameter; 

 rarely growing to tree size of about 25 or 30 feet high, and 6 to 12 inches in 

 diameter. Stems mostly hollow. Branchlets often flattened or quadrangular. 

 Bark grey, somewhat fibrous, or on very old trees even furrowed, approaching 

 that of an ' Ironbark." Abnormal leaves petiolate, generally lanceolate in 

 form, sometimes narrower and sometimes broader than the mature ones, 

 opposite, or with a tendency to become so. Normal leaves lanceolate-acuminate, 

 on petioles of about i inch long, occasionally falcate, about 6 inches long 

 and up to i inch wide, not shhvng ; venation spreading, very prominent 

 on both sides, intramarginal vein removed from the edge. Peduncles 

 axillary, not numerous, flattened and twisted, short, under 6 lines, mostly 3 to 4 

 lines long, bearing three to seven short pedicellate or sessile buds, mostly in 

 threes. Calyx tube hemispherical, 3 lines in diameter ; operculum obtuse, 

 conical, 3 lines long. . 



Fruit. Hemispherical, shortly pedicellate ; rim 

 pyramidal, and sometimes twice the length 

 of the calyx ; valves well exserted ; 3 to 4 

 lines in diameter. . 



No other species of fruits appear to have the fades of 

 this one, and so presents no difficulty in identification. 



Habitat. Near Girilambone, on stony or rocky hills ; thence 

 on hills across country to Cobar; also near 

 Coolabah, New South Wales. 



REMARKS. This species is a "Mallee" of the Northern interior of this State, where it is found associated 

 with the Green Mallee," E. viridis, R.T.B., and at times with E. oleosa, F.v.M. The bark is sometimes persistent 

 right out to the branches, whilst on some trees it is smcoth nearly half-way down. The persistent bark is rougher and 

 more furrowed in the larger trees, making a slight approach to that of the " Ironbarks." It attains, not its greatest 

 height, but certainly its greatest diameter, on the highest hills amo'ngst the roughest and rockiest parts. Perhaps 

 the most remarkable specific morphological character about it is the rim of the fruits. The word " domed " hardly 

 expresses correctly this feature, for, 'merging into the valves at the top, it forms, as it were, a truncate cone, resting 

 on the hemispherical calyx. This conformation of the rim is noticeable as soon as the stamens begin to fall off, 

 and fro.ii this stage until after its full development it gives the appearance to the fruit of a pathological affection 

 or a monstrosity. The shape of the fruits, however, is constant throughout the extensive range of the species. 



ESSENTIAL OIL. Leaves and terminal branchlets for distillation were 

 obtained from Girilambone, N.S.W., in January, 1900. The yield of oil was 17 

 per cent. The crude oil was but slightly coloured, and had an odour resembling 

 those belonging to the cineol-pin-ene class generally. The rectified oil was 

 slightly tinged yellow, a character common to those of this group. The oil may 

 be considered a good one for pharmaceutical purposes, although perhaps a little 

 low in specific gravity in the spring and summer months, and as it contained a 

 very small amount of "high-boiling constituents, the greater portion (95 per cent.) 

 distilled below 188 C. Pinene wa= the principal terpene, and phellandrene was 

 absent; in fact, the oil may be considered to consist very largely of pinene and 

 cineol, and to be rich in the latter constituent. The esters were not pronounced. 



