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Flora of Australia Online

Elaeocarpus costatus M.Taylor, Bull. Misc. Inform. Kew 1939: 178 (1939); so named from the presence of costae, or ribs, on the endocarp of the fruit.

T: Lord Howe Island, J.D.McComish 106 ; holo: K.

Elaeocarpus sp. , F.Mueller, Fragm. 9: 77 (1875); W.B.Hemsley, Ann. Bot. (London ) 10: 232 (1896); J.H.Maiden, Proc. Linn. Soc. New South Wales 27: 347 (1902); J.H.Maiden, Proc. Linn. Soc. New South Wales 39: 381 (1914). 

Illustrations: J.H.Maiden, Proc. Linn. Soc. New South Wales 27: t. 15 (1902); I.Hutton, Lord Howe Is. 33, 122 (1986).

Tree to c. 8 m tall. Leaves with petiole 1–1.5 cm long with an evident basal pulvinus; lamina lanceolate-elliptic, 6–9 cm long, 2.5–3 cm broad, acute at base and apex, crenate-dentate and each tooth apiculate when young, raised reticulate; primary veins 3 or 4 on each side of midrib, with evident domatia in axils of lower veins below. Inflorescence axillary, c. 3 cm long, 8–10-flowered; flowers pendant. Sepals 5, narrowly lanceolate, 5–6 mm long, finely appressed tomentose dorsally. Petals 5, 8 mm long, white, apically fimbriate. Stamens numerous, 4–5 mm long; anthers linear with 2, long, apiculate appendages. Ovary conical, 2–2.5 mm long, villous; style apiculate, 4 mm long. Drupe ovoid, 2 cm long, blue when ripe. Fig. 38B–C.

Lord Howe Is. A rare endemic, found at all altitudes in the southern part of the Island. Flowers mid Feb.–Mar. 

L.H.Is.: below Goat House, A.N.Rodd 1830 (NSW); Erskine Ck, I.Hutton LH2 (K); loc. id. , I.R.H.Telford 7090 (CBG); loc. id. , A.C.Beauglehole 5810 (MEL); summit of Mt Gower, J.D.McComish 106A (K).

Often recognised by the occasional leaf which has turned a bright red.

 

Data derived from Flora of Australia Volume 49 (1994), a product of ABRS, ©Commonwealth of Australia