(J.H.M., in Proc. Linn. Soc, N.S.W., 1904, p. 779.) Red Box.

Systematic. - A tree reaching 120 feet in height and 2 to 3 feet in diameter, the bark somewhat like the ordinary "Grey Box," E. hemiphloia, (J.H.M.). Leaves lanceolate, acuminate, up to 5 inches long; venation fairly distinct, intra-marginal vein varying in distance from the edge, lateral veins fairly numerous, inclined at 450 to the mid-rib. Inflorescence paniculate, peduncle 4 lines long, with umbels of small flowers. Calyx tube 1 1/2 lines long, tapering to a pedicel of about equal length; operculum conoidal.

Fruit. - Conoid or somewhat pyriform, on slender pedicels; rim thin; valves not exserted; 2 lines long and under 2 lines in diameter.

It is almost impossible to morphologically separate these fruits from those of E. crebra.

Habitat. - The Coastal districts of New South Wales, but favouring the northern portion.

REMARKS. - Although the fruits of this species and E. crebra are pratically identical in form, yet this tree has a "Box" bark and the latter, E. crebra, is an "Ironbark."

ESSENTIAL OIL. - Leaves and terminal brarichlets for distillation were received from Thirlmere, N.S.W., in September, 1906. The yield of oil was 0.31 per cent. The crude oil was of a light reddish-brown colour, and had the characteristic appearance and odour of the typical "Box" oils generally. The secondary odour of aromadendral was very pronounced. Pinene was only present in small amount and phellandrene was absent. Cineol was detected, but only to the extent of 5 to 8 per cent. Cymene was a pronounced constituent. Altogether the results show this oil to be closely associated with those of E. hemiphloia, E. Woollsiana, etc.

The crude oil had specific gravity at 150 C. = 0.9042; rotation aD - 8.5°; refractive index at 200 = 1.4841, and was soluble in 1 volume 80 per cent, alcohol.

On rectification, 2 per cent, distilled below 1710 C. (corr.). Between 171-178°, 35 per cent, distilled, and between 178-205°, 37 per cent, distilled. These fractions gave the following results: -

The lævo-rotation of this oil is' due to the aromadendral. Esters were only present to a small extent, as the saponification number was 6.1.