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CCXXXVIII. E. hæmatoxylon Maiden.

In Proc. Roy. Soc. N.S.W., xlvii, 218 (1913).

Arbor parva altitudinem 20' et trunci diametrum 18? attinens, “Mountain Gum” nominata. Bloodwood typicus. Cortex stratis mollibus rubris secedens. Lignum rubrum, gummi venis. Folia petiolata lanceolata ad lato-lanceolata, coriacea, 8-9 cm. longa 2–3 cm. lata. Venae secundariae tenues et fere paralleles. Flores in corymbo irregulare. Filamenta alba. Fructus ovoidei vel fere sphaerici, aliquando orificio constricti, urceolati, 3 cm. longi, 2·5 cm. lati. Orificium 1 cm. latum.

A small tree, attaining a height of 20 feet and a trunk diameter of 18 inches. “Much resembling E. calophylla R.Br., the `Red Gum,' in general appearance.” Known as “Mountain Gum.” It is a typical “Bloodwood.”

Bark.—In soft reddish flakes, typically that of a “Bloodwood.”

Timber.—Red, with gum veins, stated to be “very soft”; a typical Bloodwood timber, hence the specific name suggested.

Juvenile Leaves.—Broadly lanceolate, thin-membranous, reddish purple, petiolate, margin thickened, secondary veins very fine and nearly parallel to each other. Containing caoutchouc.

Mature Leaves.—Petiolate, lanceolate to broadly-lanceolate, symmetrical or somewhat oblique, apex attenuate-acuminate, coriaceous and of medium thickness, equally green on both sides, margin thickened, intramarginal vein not far removed from the edge. Secondary veins fine and nearly parallel to each other. Length say 8 or 9 cm., and breadth 2–3 cm.

Buds.—In a large corymb consisting of individual umbels of four to seven. Each peduncle thin, flattened, ribbed, and about 2·5 cm. long; the pedicels similar but slenderer, and from 1 to 1·5 cm long. The bud club-shaped, the operculum pointed, short, less than half as long as the calyx-tube, which is contracted at the orifice, and which does not taper gradually into the pedicel.

Flowers.—Filaments cream-coloured, stamens inflected in the bud, the anthers all fertile, long and somewhat pale, opening in parallel slits, small gland at the top; versatile.

Style ribbed, the stigma hardly exceeding it in thickness.

The anthers, style and stigma appear to be identical with those of E. corymbosa.

(The description of the buds and flowers, op. cit. xlviii, 432 (1914).)

Fruits.—Ovoid to nearly spherical, sometimes constricted at the orifice, thus taking on an urceolate shape. Large, 3 cm. long and 2·5 cm. broad, with an aperture of 1 cm. and less. Tips of valves well sunk. Seeds large, wing rudimentary.




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Range.

It is confined to south West Australia so far as we know at present. Specific localities are:—

Happy Valley, Jarrahwood Railway, Western Australia. Generally in poor, sandy country (Forest Ranger W. Donovan, July, 1912).

“Mountain Red Gum.” Height 30–40 feet and up to 12–18 inches in diameter. Trees are of a stunted nature, and the wood is very faulty. Grows in ironstone country in the mountains with Jarrah, between Busselton and Jarrahwood. (Dr. F. Stoward, No. 108.)

Affinities.

The affinity at once suggested is E. ficifolia F.v.M., but the filaments of the new species are white, and the fruits are of a different shape, viz., smaller and more spherical, those of E. ficifolia being somewhat cylindroid. The seeds of the latter species also are winged, its bark is more fibrous and its timber paler; it lacks the rich cedar-coloured timber of the present species.

It is also allied to E. calophylla R.Br., a much larger tree. The three species are closely related, and all have very large, handsome cotyledon leaves, and the young leaves soon become more or less peltate, but the character is apparently most common in E. calophylla.

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