Syzygium claviflorum (Roxb.) Wall. ex A.M. Cowan & Cowan - MYRTACEAE

Basionym : Eugenia claviflora Roxb.

Synonym : Eugenia leptantha Wight
Acmena leptantha (Wight) Walp.
Acmenosperma claviflorum (Roxb.) Kausel.

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Botanical descriptions Habitat and ecology Distribution

Botanical descriptions :

Diagnostic characters : Leaves with pellucid glands and single intramarginal vein, ca. 1 mm from margin, secondary veins closely parallel. Inflorescence cymose with short peduncle, calyx cup long funnel shaped.
Habit : Evergreen tree up to 30 m tall. Branches ascending to the main trunk.
Trunk & bark : Trunk straight. Bark slightly fissured, longitudinally scaly, grey-brown or cream-brown, inner bark light brown, wood creamy.
Branches and branchlets or twigs : Twig terete, slightly compressed, slightly cracked, glabrous, whitish grey or grayish-brown.
Exudates : Exudate absent.
Leaves : Leaves simple, opposite decussate, 5.4 – 17.8 by 2-7.5 cm, ovate or narrowly elliptic, apex acute or shortly acuminate, base attenuate, margin entire, blade leathery, glabrous on both sides, with numerous transparent dots visible against the light.
Midrib canaliculated above, primary vein single, pinnate, secondary veins oblique to the midrib, closely parallel, tertiary veins admedial, with single intramarginal vein, 1 mm from margin. Petiole canaliculated and glabrous.
Stipules absent.
Inflorescences or flowers : Flowers white-yellowish, sessile, grouped in terminal cymes with short peduncle, calyx cup long funnel shaped.
Fruits : Fruit is a berry, smooth, glabrous, greenish with reddish tip.
Seeds : Seed 1-2.

Habitat and ecology :

Found in streamside of the rain forests, in open degraded forest on white sand with large rocks up to 1300 m altitude. Flowering time: November to March, fruiting May to September. .

Distribution :

Australia, Bangladesh (Type), Burma/Myanmar, China (Yunnan), India, Indonesia, Malaysia, Thailand ( Northern, North-Eastern, South, South-Eastern, Peninsular ), Papua New Guinea, Vietnam and Laos ( Borikhamxay and Khammouane provinces).

Remark/notes/uses :
Timber is used.

Specimens studied :
BT 51, BT 282, BT 423, BT 1027 (Herbarium of Faculty of Sciences-NUoL, NHN-Leiden and CIRAD-Montpellier).

Literature :
Chantaranothai P. and Parnell J. 1994. A revision of Acmena, Cleistocalyx, Eugenia s.s and Syzygium (Myrtaceae) in Thailand. Thai Forest Bulletin (Botany) 21: 1-123.
Gardner S., Sidisunthorn P. & Anusarnsunthorn V. 2000. A field guide to Forest Trees of Northern Thailand. Kobfai Publishing Project. Bangkok. Thailand.
John Parnell & Pranom Chantaranothai. 2002. Myrtaceae. Flora of Thailand, Vol. 7, part 4. The Forest Herbarium, Royal Forest Department, Bangkok, Thailand.
Jic Chen & Lyn A. Craven. 2007. Flora of China. Vol. 13. Missouri Botanical Garden Press (St.Louis).

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