Volume 13 > Part 4 > Year 2017 > Page 604 > Dipterocarpaceae > Hopea

10. Hopea odorata Roxb.wfo-0000724618

Pl. Coromandel 3: 7, t. 10. 1819; Craib, Fl. Siam. 1: 147. 1925; Smitinand, Santisuk & Phengklai, Thai Forest Bull., Bot. 12: 50. 1980; P.S.Ashton, Fl. Males., Ser. 1, Spermat. 9: 422. 1982; Smitinand, J.E.Vidal & P.H.Hô, Fl. Cambodge, Laos & Vietnam 25: 69, t. 12, figs. 1–5. 1990; Svengs. & J.E.Vidal, Diptérocarp. Laos: 25. 1997; Pooma & M.F.Newman, Thai Forest Bull., Bot. 29: 146. 2001; Symington, P.S.Ashton & S.Appanah, Malayan Forest Rec. 16: 313. 2004; Poopath, Sookchaloem & Santisuk, Thai Forest Bull., Bot. 40:69. 2012; Gardner, Sidisunthorn & Chayamarit, Forest Trees S. Thailand Vol. 1: 440, fig. 668. 2015. Plate LIII: 5–6.

Accepted Name : This is currently accepted.

Description : Tree, 20–40 m tall, stem frequently quite twisted; bark irregularly fissured, becoming scaly, lenticellate. Buds ovoid, minute, densely pubescent to glabrous. Young twigs glabrous, lenticellate. Stipules linear, ca 2 by 0.3 mm. Leaves ovate to ovate-lanceolate, falcate, 5–14 by 3–6.5 cm, glabrous to glabrescent; base cuneate to broadly cuneate, slightly asymmetrical; apex long acuminate; midrib slightly raised to flattened above; nervation scalariform, 8–12 on each side; domatia frequently present, cavity-like, glabrous or minutely pubescent inside; tertiary nerves densely scalariform; petioles 1–1.5 cm long. Inflorescences 3–10 cm long, densely white pubescent, doubly branched; branchlets 1–3 cm long, bearing 4–10 flowers; flower buds ovoid, 4–5 by 2–3 mm. Calyx lobes densely pubescent outside, 2 outer elliptic or ovate with obtuse apex, 2–3 by ca 1.5 mm; 3 inner ovate to ovate-lanceolate with acuminate apex, 2–2.5 by 1.3–1.5 mm. Petals falcate-oblong, 3–5 by 1–2 mm, cream to white or pale yellow; pedicels stout, ca 1 mm long. Stamens 15, in 2 whorls; filaments 0.8–1 mm; anthers oblong or ovate-oblong, ca 0.5 mm long; connective-appendages ca as long as anthers. Ovary ovoid, 1.8–3 by 0.5–1 mm, stylopodium indistinct, punctate or glabrous, attenuate to columnar style; style 0.7–1 mm long. Fruiting calyx lobes sparsely to densely pubescent; saccate at base, thickened, elliptic, 4–5 by 3–4 mm; 2 lobes wing-like, 3–6 by 0.7–2 cm, light green when young; 3 shorter lobes ovate with acute apex, 4–7 by 2.5–4 mm; fruit pedicels ca 1 mm long. Nut broadly ovoid to subglobose, 6–8 mm in diam., glabrous to densely pubescent with small scurfy scale-like hairs; style remnant ca 2 mm long.

Thailand : NORTHERN: Chiang Mai, Phayao, Lamphun, Lampang, Tak, Sukhothai, Phichit, Nakhon Sawan; NORTH-EASTERN: Phetchabun, Loei, Buang Kan; EASTERN: Chaiyaphum, Nakhon Ratchasima, Buri Ram, Surin, Ubon Ratchathani; SOUTH- WESTERN: Uthai Thani, Kanchanaburi, Ratchaburi, Prachuap Khiri Khan; CENTRAL: Ang Thong, Krung Thep Maha Nakhon (Bangkok); SOUTH-EASTERN: Prachin Buri, Chon Buri, Rayong, Trat; PENINSULAR: Chumphon, Surat Thani, Phangnga, Nakhon Si Thammarat, Phuket, Trang, Satun, Songkhla, Pattani, Yala, Narathiwat.

Distribution : Bangladesh, Andaman Islands, Myanmar (type), Laos, Cambodia, Vietnam, Upper Peninsular Malaysia.

Ecology : Dry evergreen and evergreen forests, usually found by streams, occasionally found in beach forests, edges of peat swamp forests and by streams in mixed deciduous forests, up to 900 m alt. Flowering: December–April; fruiting: April–July.

Vernacular : Cha khian (จะเคียน)(Northern); khian (เคียน), takhian sai (ตะเคียนทราย)(Peninsular); takhian (ตะเคียน), takhian thong (ตะเคียนทอง); khaen (แคน)(Northeastern, Eastern); takhian chan khao (ตะเคียนชันขาว)(Chanthaburi); chue-nga (จืองา)(Malay-Pattani, Narathiwat); ka-kriel (กะกรีล)(Khmer-Surin); chu-ke (จุ้เค), Soke (โซก)(Karen-Kanchanaburi); ka-ki (กะกี้), ko-ki (โกกี้)(Karen-Chiang Mai); phrai (ไพร)(Lawa-Chiang Mai).