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FOC | Family List | FOC Vol. 13 | Myrtaceae | Eucalyptus

10. Eucalyptus tereticornis Smith, Spec. Bot. New Holland. 41. 1795.

细叶桉 xi ye an

Eucalyptus umbellata (Gaertner) Domin; Leptospermum umbellatum Gaertner.

Trees, to 25 m tall. Bark grayish white, smooth, exfoliating in long strips. Branchlets terete, slender, pendulous. Leaf blade of young leaves ovate to broadly lanceolate, to 10 cm wide. Leaf blade of intermediate leaves broadly lanceolate. Mature leaves with a 1.5-2.5 cm petiole; leaf blade narrowly lanceolate, 10-25 × 1.5-2 cm, slightly twisted, both surfaces with small glands, secondary veins at an angle of ca. 45° from midvein, intramarginal veins ca. 0.7 mm from margin. Inflorescences axillary, simple, umbels 5-8-flowered; peduncle 1-1.5 cm, stout, terete. Flowers buds long ovate, 1-1.3 mm or longer. Hypanthium hemispheric, 2.5-3 × 4-5 mm; stipe 3-6 mm; calyptra conic, 7-10 mm, apex acuminate. Stamens 6-9 mm; anthers long obovate, dehiscing longitudinally. Capsule subglobose to ovoid, 6-8 mm in diam.; disk broad; valves 4 or 5, much exserted from hypanthium. Fl. Feb-Apr, Jun-Aug.

Cultivated in Anhui, Fujian, Guangdong, Guangxi, Guizhou, Jiangxi, Sichuan, Yunnan, and Zhejiang [native to E and SE Australia].


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