On rectification, i per cent, distilled below 162 C. (corr.). Between 

 162-1 73, 5 per cent, distilled; between 173-193, 36 per cent, came over, and 

 between 193-276, 10 per cent, distilled. These fractions gave the following 

 results : 



First fraction, sp. gr. at 15 C. = 0-8901 ; rotation # D + i8'6 ; refractive 



index at 20 = 1-4638. 

 Second ,, ,, ,, = 0-9052 ; rotation a + 8'0 ; refractive 



index at 20 = 1-4647. 

 Third ,, ,, ,, = 0-9332 ; rotation a,, + 0-5 ; refractive 



index at 20 = 1-4876. 



The cineol was determined by the rapid phosphoric acid method in the 

 crude oil ; the result was 35 per cent. 



86. Eucalyptus maculosa. 



(R.T.B., Proc. Linn. Soc., N.S.W., 1899, p. 598, t. XI IV.) 

 Spotted Gum or Brittle Gum. 



Systematic. A tree rarely exceeding 60 feet in height, usually from 20 

 to 40 feet. Bark smooth to the ground. Abnormal leaves thin, lanceo- 

 late, or oval lanceolate, 2 or 3 inches long, mostly alternate ; intramarginal vein 

 removed from the edge. Normal leaves lanceolate, or narrow lanceolate, falcate, 

 not shining, same colour on both sides ; venation faintly marked, or rather 

 obscure, intramarginal vein close to or slightly removed from the edge, lateral 

 veins oblique. Some trees have the leaves quite rigid and erect. Peduncles 

 axillary, slender, under 6 lines long, bearing from four to' sixteen, occasionally 

 twenty sessile or shortly pedicellate flowers. Calyx turbinate, about i line long; 

 operculum of equal length to the calyx, obtuse. 



Fruit.- Hemispherical mostly, occasionally slightly 

 turbinate, shortly pedicellate ; rim shortly 

 domed ; valves slightly exserted ; about 

 2 lines in diameter. 



In form they range from a small to a medium sized 

 E. viminalis fruit, and in the latter case somewhat 

 resemble those of E. Smithii. 



Habitat. Coast District of New South Wales- and Victoria. 



REMARKS. It grows in poor, open, forest country up to 50 or 60 feet in height, and from i to 3 feet 

 in diameter, with a rather dense head. The bark is of different shades of grey, or bluish or yellow, with spots of 

 about the same size and shape as those of E. maculata. Hook., the true " Spotted Gum." It has affinity with E. 

 Smithii, R.T.B., in the fruits (in some instances) and particularly in the chemical composition of its oil. With 

 the original " Spotted Gum," E. maculata, Hook, it has little or no affinity. On account of the markings on the 

 bark it can with equal justice be called " Spotted Gum," as well as E. maculata, but to distinguish it from that 

 species and to record its field character, the name of E. maculosa was given to it. The two species have so far 

 not been found together in the same locality. It has in the past probably been confused in herbaria with E. 

 heemastoma, Sm. var. micrantha, D.C. or E. Rnssii. Its chemical constituents connect it with E. Smithii, R.T.B., 

 as also do the shape of the fruits, and occasionally the rough bark at the. base of -the trunk, 



