(R.T.B., Proc. Linn. Soc, N.S.W., 1912, p. 585.)

Systematic. - A small tree, under 40 feet in height, 1 foot in diameter, with a hard stringybark, decorticating in strips from the main branches, which are otherwise smooth. Abnormal leaves ovate-lanceolate, slightly falcate in some cases, petiolate, attenuate, varying in size. Normal leaves lanceolate, alternate, sub-coriaceous, average under 4 inches long and 1 inch wide, occasionally shining; venation distinctly marked (the basal lateral veins sometimes running the whole

Plate LXVii

A cross section cut through the mid-rib and adjacent tissue showing the characteristic structure of this coriaceous leaf, which feature carries with it in this instance four rows of parenchvma on both sides of a narrow band of spongy, tissue, and an epidermis particularly well pronounced. The wood fibres in two or more rows entirely surround the bundle, which is bounded on both sides by a narrow band of supporting tissue. The yield of oil is only 0.41 per cent., consequently the oil glands are few in Dumber, comparatively, in relation to the thickness of the leaf. This feature is well shown by comparing the plate with E. Ausfraliana (Plate L), both sections having approximately the same magnification. x 75

Eucalyptus Hæmastoma

Sm length of the leaf, other lateral veins more transverse. Buds in clusters on axillary peduncles 3 lines long; calyx tubs almost sessile, 2 lines long; operculum shortly conical.

Fruit. - Hemispherical, capitular, pedicel up to 2 lines long; rim domed; valves scarcely or not exserted; 3 lines broad and 3 lines long.

These have a strong resemblance to those of E. dives in being shiny, yellow in colour, but the rim is slightly more domed, or a small form (not illustrated) of E. capitellata, but pedicellate.

Habitat. - Black Mountain, Armidale, Barber's Creek, New South Wales.

REMARKS. - -A tree of rather rare occurrence, being only known so far from two localities (supra). The buds and leaves closely resemble those of E. stellulata, but the bark is stringy. The venation belongs to the same class as that of E. dives and E. stellulata or E. phlebophylla.

ESSENTIAL OIL. - Material for distillation was received from Black Mountain, New England District, N.S.W., in August, 1907. The yield of oil was 0.37 per cent. The crude oil was dark-coloured and had a terpene-like odour. The constituents present were lævo-rotatory pinene, phellandrene, cineol, esters, and the sesquiterpene.

The crude oil had specific gravity at 150 C. = 0.9095; rotation aD - 8.1°; refractive index at 200 = 1.4790, and was soluble in 6 volumes 80 per cent. alcohol. The saponification number for the esters and free acid was 13.4.

On rectification, 2 per cent. distilled below 1570 C. (corr.). Between 157-1750, 54 per cent. distilled; between 175-2250, 7 per cent. came over, and between 225-2700, 32 per cent, distilled, the greater portion above 2600. These fractions gave the following results: -

The first fraction was again distilled, when 36 per cent, came over below 1570 C, and 38 per cent, between 157-1600. These two fractions gave the following results: -

The nitrosochloride was easily prepared with the first fraction, and this melted at 1040 C. It is thus evident that the principal constituent is pinene. Cineol was present, but not more than 5 to 8 per cent. Phellandrene occurs only in small quantity.

The above characters distinguish the oil of this species from that of E. stellulata.