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  ― 169 ―

CCLXI. E. Ebbanoensis Maiden n.sp.

THIS species may be described as follows:—

Mallee 9? diametro, fere 30' alta, cortice læve; foliis maturis obscure viridibus, crassiusculis, lanceolatis, sæpe falcatis, venis indistinctis, tenuibus, patentibus, vena peripherica margini approximata; alabastris 3 in axillis pyriformibus, operculo brevi-hemispherico, ca. 5 mm. diametro; calycis tubo urceolato ad conoideo; staminibus 4 fasciculis dispositis; fructibus fere hemisphericis, fere 1 cm. diametro, margine latiusculo plano vel rotundato, valvis bene exsertis.

A tall mallee, usually between 12 and 20 feet high and 6 inches in diameter, but probably attaining a height of about 30 feet; stems near the ground about 9 inches in diameter. Bark smooth.

Juvenile leaves not seen.

Mature leaves usually alternate, dull green, the same on both sides, rather thick, with rather long petioles, lanceolate, often falcate, gradually tapering to the apex, not very rounded at the base, profusely dotted, venation indistinct, fine, spreading, the intramarginal vein rather close to the edge.

Flowers.—Buds in threes in the axils, brown, the peduncles rounded and about 1 cm. long, the pedicels short but distinct. Pear-shaped, the operculum shallow-hemispherical, about 5 mm. in diameter, the calyx-tube urceolate to conoid, and twice the depth of the operculum. Anthers versatile, with cream-coloured filaments, the cells opening in parallel slits with large gland at back; arranged in four bundles, alternating with the calyx-teeth.

Fruits hemispherical to truncate-pyriform, nearly 1 cm. in diameter, with a broadish, flat or domed rim, and with the valves (three) well exsert.

Type from Sandplain, Ebbano, east from Mingenew, Western Australia (Dr. A. Morrison, 28th September, 1904).

Figured at Figs. 6 and 7, Plate 189.

Range.

It is confined to Western Australia, so far as we know at present. The type comes from Ebbano (Ebano), about 12–15 miles east of Mingenew, a railway station 227 miles north of Perth and about 35 miles east of Dongarra on the sea coast. Comet Vale is on the Laverton line, and is 63 miles north of Kalgoorlie. The two localities are nearly 400 miles apart in a slightly south-easterly direction.

Following are details of the two specimens seen by me:—

“Sand Plain, Ebbano, east from Mingenew” (A. Morrison, 28th September, 1904). No further particulars. Dr. Morrison spelt the name with two “b's,” but on the official map, obligingly forwarded by the Department of Lands and Surveys of Western Australia, the name is spelt with one “b.” As Dr. Morrison's original spelling was Ebbano, and in some correspondence concerning this plant that spelling was adopted, I use the name Ebbanoensis, though with some doubt.




  ― 170 ―

No. 115. No main trunk (mallee habit). Usually between 12 and 20 feet high; stem usually not more than 6 inches in diameter. Smooth bark. Many of the trees seen are re-growths. Original trees probably up to about 30 feet in height, and stems near the ground about 9 inches in diameter. Comet Vale (J. T. Jutson, No. 115, December, 1916; fruits, 25th March, 1917).

Affinities.

With E. eudesmioides F.v.M.

It is evidently closely related to this species. I have not juvenile leaves of the new species, but the two can be compared to some extent on perusing Plate 189. It seems to me that E. eudesmioides is a remarkably uniform species. E. Ebbanoensis differs from it sharply in the fruits, which are larger, inclined to be quadrangular, usually angled, with a thin rim and sunk valves. It also appears to be longer leaved and more free-growing. Both species are Mallees or small trees, and have their inflorescence in threes. The new species, while I believe it to be quite distinct, requires further investigation before we can fully define it.

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