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  ― 182 ―

LXX. E. decipiens Endl.

(Synonym E. concolor Schauer, No. LXIX.)

IF my readers will turn to Journ. Roy. Soc. N.S.W., liv, Proc. Dec., 1920), there will be found a brief note recording that I drew attention to the confusion that has gathered around E. concolor in the same Journal, Vol. XLVII, p. 231 (1913). I have carried the matter a stage further in the present work, Part XLII, page 66. I have now received admirable specimens from Mr. C. A. Gardner, who is collecting on behalf of Mr. C. E. Lane-Poole, the Conservator of Forests of Western Australia. His specimens come from Spearwood, near Fremantle, Western Australia, are complete, and supply the missing evidence that E. concolor is specifically identical with E. decipiens.

At the top of p. 67 I suggested “it may turn out that E. concolor is the Fremantle form of E. decipiens.” Mr. Gardner's specimens prove this, and we are therefore justified in suppressing E. concolor Schauer as a separate species. Not only has the conclusion been arrived at by the direct evidence of field observations, but the result is confirmed by seedlings raised from seeds from various localities, and grown in the Botanic Gardens, Sydney.

Mr. Gardner's description of the Fremantle tree, which follows, is valuable, that while E. decipiens, it is E. concolor, and from practically the type locality.

Eucalyptus decipiens Endl.—A tree attaining 30 to 50 feet, but usually much less, the branches spreading or almost pendulous, and very much like E. gomphocephala DC. in appearance. Bark thick, persistent and rough, of an ash-grey colour, the bark of the upper portions sometimes smooth.

Leaves variable in shape and size. Sucker leaves opposite or alternate, obcordate or almost orbicular, 2–3 cm. long and as broad, glaucous, the midrib scarcely conspicuous, the veins at an angle of 45 degrees to the midrib, the intramarginal one at a distance from the edge. Adult leaves ovate-lanceolate or lanceolate, undulate, slightly falcate, coriaceous and shining, about 9 cm. long, the midrib conspicuous, the intramarginal vein distinct and usually about ·2 cm. from the edge.

Peduncles lateral, terete and thick, ·8 cm. long, bearing a dense sessile head of 6 to 9 flowers. Calyx-tube broadly turbinate, ·5 cm. long and as broad. Operculum conical as long as the calyx-tube, obtuse, the line of separation distinct. Stamens inflected in the bud, filaments white, filiform, terete or slightly flattened at the base ·7 cm. long, anthers globular. Ovary conical, style thickened at the base, about ·6 cm. long, tapering.

Fruit broadly turbinate or campanulate ·5 cm. long and about as broad. Capsule sunk beneath the prominent truncate rim, the points of the valves slightly protruding.

Collected at Spearwood near Fremantle in limestone on low hills near the sea. Some of the young trees grow in dense patches, are erect, and might in appearance suggest a mallee. Coll. C. A. Gardner, 14th September, 1920.




  ― 183 ―

APPENDIX.

Eucalyptus cochinchinensis Auct.

In Part I, p. 18 of the present work, there is a list of some non-eucalypts described as Eucalypts. The following may be added.

The late Dr. C. B. Robinson, the well-known botanical explorer of the Philippine Bureau of Science, Manila, wrote to me on 10th April, 1911, “In the Botanic Gardens at Saigon, I was shown a plant under the name of Eucalyptus cochinchinensis, and told that it is very common both in Cochin China and Cambodia. Subsequently I found it in great abundance in southern Annam. However, I believe it to be a Melaleuca. It may interest you, as it has been referred to Eucalyptus.”

Dr. E. D. Merrill, of the Bureau, sent me the following specimens:—

1012. C. B. Robinson, 8–3–11, as above. It is Melaleuca Leucadendron L.

1092. C. B. Robinson, 12–3–11. Melaleuca leucadendron L. Nha-trang, Annam. “A tree 4 m. high, growing at an altitude of 2 metres.”

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