(W.V.F., in Jour. W.A. Nat. Hist. Soc, i, 21, 1904.)

Systematic. - A medium-sized tree, attaining a height of 60 feet, with a smooth persistent, greyish or white bark, blotched with patches of darker colour. Abnormal leaves broad-ovate, up to 6 inches long and 6 inches across, thick and coarse, petiolate, often cordate at the base. Normal leaves ovate to lanceolate, sometimes falcate, averaging 3 to 4 inches long, thick, often acuminate; venation not conspicuous, intramarginal vein not far removed from the edge, lateral veins inclined at about 400 to the mid-rib. Flowers about eight in umbels, the common peduncle axillary or lateral, slightly angular, about 8 lines long. Calyx tube turbinate, about 3 lines long, tapering to a pedicel not quite as long; operculum 1 1/2 lines long, semi-ovoid, rounded at the apex.

Fruit. Turbinate or sub-cylindrical, sometimes conoidal, scarcely or not contracted at the orifice; rim narrow, counter-sunk, grooved at the top and usually cracked transversely; valves slightly exserted; 4 to 5 lines long, 3 lines broad.

Amongst the Eastern species the nearest in shape to these are E. ochrophloia and E. Fergusoni.

Habitat. - Restricted to Western Australia.

ESSENTIAL OIL. - Leaves and terminal branchlets of this species for distillation were received from Mr. C. E. Lane-Poole, the Conservator of Forests, Western Australia. The material was collected in August, 1918. The yield of oil was 0.87 per cent. The crude oil was red in colour and had an odour similar to those of the cineol-pinene oils of the "Gum" group. The chief terpene was dextro-rotatory pinene; phellandrene was absent, and cineol only present in fair amount. Crystallised eudesmol was detected. The esters were mostly high-boiling, and the oil contained some sesquiterpene.

The crude oil had specific gravity at 150 C. = 0.9084; rotation, aD + 13.4°; refractive index at 200 = 1.4691, and was soluble in 9 volumes 70 per cent, alcohol. The saponification number for the esters and free acid was 4.6.

On rectification, 1 per cent, distilled below 158° C. (corr.). Between 158-172°, 61 per cent. distilled; between 172-193°;224 per cent, came over, leaving 14 per cent, boiling above 1930. The two fractions and the residue gave the following; results: -

The saponification number for the residue was 13.4, and in the cold with two hours' contact it was 13.1. The saponified oil was very aromatic.

The cineol was determined by the resorcinol method in the portion distilling between 158-193°; when calculated for the crude oil, the result was 45 per cent. A determination by the rapid phosphoric acid method in the crude oil gave 43 per cent.

The rectified oil was tinged yellow, a feature common with the oils of the "Gum" group.