e-Flora of Thailand

Volume 14 > Part 1 > Year 2018 > Page 21 > Cornaceae > Alangium

5. Alangium griffithii (C.B.Clarke) Harmswfo-0000937017

Nat. Pflanzenfam. [Engler & Prantl] 3(8): 262. 1898; Bloemb., Bull. Jard. Bot. Buitenzorg, sér. 3, 16: 194. 1939.— Marlea griffithii C.B.Clarke in Hook.f., Fl. Brit. India 2: 742. 1879. Fig. 3.


Synonyms & Citations :

Marlea densiflora Koord. & Valeton, Bull. Inst. Bot. Buitenzorg 2: 2. 1899.— Alangium densiflora (Koord. & Valeton) Wangerin in Engler, Pflanzenr. 41, IV. 220b: 17. 1910.
Alangium myrianthum Wangerin, Repert. Spec. Nov. Regni Veg. 4: 339. 1906.
Alangium unilocularis auct. non (Griff.) King: King, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 71(1): 77. 1902.


Description : Tree, 5–15(–20) m tall, twigs brown, sparsely or densely fine hairy, glabrescent, 2–5 mm diam.; thorns absent. Leaves: petiole pubescent, 0.6–1.2 cm long; lamina sparsely hairy, especially on nerves, (narrowly) elliptic or ovate-oblong, 8–18 by 4–8 cm, base short-cuneate or rounded, conspicuously asymmetric, apex acute-acuminate; 3–5-veined from the base; lateral veins 3–5 on each side; intercostal venation fine, scalariform. Inflorescences upwards directed (not hanging), (densely) short-hairy, simple, rather compact, subdichasially 3(–5)-branched, densely (10–)20–40(–60)-flowered, bracts and bracteoles small, caducous; peduncle 0.5–2 cm long. Flowers: pedicel short (flowers subsessile); corolla in bud (8–)10–12 mm long, hardly broadened at base; ovary and calyx minutely sparsely hairy, 1.5–3 mm long, limb ca 0.5 mm long, 2.5–3 mm wide, 5-lobed, lobes 0.5–1 mm long, acute, ± spreading; petals 5 (or 6) with distinct midvein, 10–15 mm long; stamens as many as petals, 7–11 mm long, filaments 3–4.5 mm long, in lower portion thickened and conspicuously whitish long-hairy, upper portion glabrous, anthers 4–9 mm long, connective glabrous; style glabrous, ca 9 mm long, stigma subglobose. Fruit ripening yellowish or purple, juicy, glabrescent, broadly ovoid, somewhat flattened, 1.5(–1.7) cm long, finely inconspicuously ribbed or smooth.


Thailand : PENINSULAR: Songkhla (Ton Nga Chang WS), Phattalung (Khao Pu-Khao Ya NP), Pattani.


Distribution : Sumatra, Peninsular Malaysia (lectotype), Singapore, Java, Borneo, Sulawesi, N Moluccas.


Ecology : Shaded places, along rivers in primary evergreen forests, limestone and granite bedrock, 50–200 m alt. Flowering: May and June; fruiting: July.


E-version notes : Alangium uniloculare (Griff.) King
J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 71: 77. 1902.


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