(J.H.M., in Proc. Linn. Soc, N.S.W., 1904, p. 471.)

Systematic. - A very large tree, with a smooth bark, ribbony at the base, having extensive buttresses. Abnormal leaves ovate, sometimes orbicular, more or less acuminate, petiolate, thin. Normal leaves lanceolate to broad lanceolate, very acuminate, mostly under 6 inches long; venation fairly distinct, intra-marginal vein close to the edge, lateral veins fine, numerous, at an angle of 45° to the mid-rib. Peduncles axillary or lateral, angular, 2 to 5 lines long, bearing umbels of about six flowers. Calyx tube conical, 1 1/2 lines long, tapering to a pedicel of about equal length; operculum inclined to hemispherical, umbonate.

Fruit. - Slightly hemispherical to bell-shaped, pedicellate; rim thin, somewhat convex or even countersunk; valves just exserted; 2 1/2 lines long, and 2 lines in diameter.

It approaches perhaps E. saligna in shape, more than that of any other species.

Habitat. - Eastern New South Wales into Queensland.

REMARKS. - This is a species by no means easy to separate from E. saligna either in the field or by herbarium material. The young state leaves, however, are broader than in that species.

ESSENTIAL OIL. - Leaves and terminal branchlets for distillation were received from Ourimbah, N.S.W., in September, 1897. The yield of oil was 0.6 per cent. The crude oil was of an orange-brown colour, and had an odour not at all unlike those of the "Box" group generally. The oil of this species had a strong resemblance to that of E. punctata var. didyma, and contained aromadendral in some quantity. The constituents present, besides the aromadendral, were pinene, cineol, cymene, esters, and the sesquiterpene. Phellandrene was absent.

The crude oil had specific gravity at I5°C. - 0.9216; rotation aD - 3.2°; refractive index at 200 = 1.4896, and was soluble in 2 volumes 80 per cent, alcohol. The saponification number for the esters and free acid was 21.4.

On rectification, 2 per cent. distilled below 1720 C. (corr.). Between 172-1830, 37 per cent. distilled; between 183-2240, 36 per cent. came over; between 224-2500, 10 per cent, distilled, and between 250-2790, 7 per cent. These fractions gave the following results: -

The influence of the aromadendral in the third fraction evidently accounts for its higher specific gravity over that of the fourth fraction.

The cineol in the crude oil did not exceed 8 or 10 per cent.