e-Flora of Thailand

Volume 7 > Part 1 > Year 1999 > Page 31 > Apocynaceae > Tabernaemontana

4. Tabernaemontana divaricata (L.) R.Br. ex Roem & Schult.wfo-0000319835

yst. 4: 427. 1819; Kurz, Fl, Burm. 2: 174. 1877; Coner, Ways. Trees 151. 1940; Leeuwenberg, Rev. Tabernaemontana 1: 153. 1991; Li et al., Fl. China 16: 153. 1995.— Nerium divaricatum L., Sp. Pl. 209. 1753.— Ervatamia divaricata (L.) Burkill, Rec. Bot. Surv. Ind. 10: 320. 1925; Kerr, Fl. Siam, En. 2: 443. 1939; Backer & Bakh.f., Fl. Java 2: 228. 1965; Lý, Fedd. Rep. 97: 445. 1986; Tsiang & P.T.Li, Fl. Reip. Pop. Sin. 63: 100. 1977.


Accepted Name : This is currently accepted.



Synonyms & Citations :

Tabernaemontana siamensis Warb. ex Pitard, Fl. Gén. I.-C. 3: 1158. 1933.— Ervatamia siamensis (Warb. ex Pitard) Kerr, Fl. Siam. En. 2: 447. 1939.
Nerium coronarium Jacq., Icon. Pl. 1: pl. 52. 1787.— Tabernaemontana coronaria (Jacq.) Willd., Enum. Hort. Berol. 275. 1809; Hook.f., Fl. Br. Ind. 3: 646. 1882.— Ervatamia coronaria (Jacq.) Stapf, Fl. Trop. Afr. 4(1): 127. 1902; King & Gamble, J. As. Soc. Beng. 74(2): 450. 1907; Ridl., Fl. Malay Penins. 2: 342. 1923.


Description : Shrub or small tree to 3 m. Branches glabrous. Leaves: petiole 3–10 mm long; blade papery when dry, elliptic, 4–15.2 x 1.7–8 cm, apex acuminate; base cuneate; tertiary venation inconspicuous; glabrous. Inflorescence 6.4–10 cm long; 1–25 flowers. Sepals ovate, apex obtuse or more rarely acute or acuminate; 2–7 mm long, 1.3–2.4 x as long as broad; not ciliate or sparsely ciliate. Corolla double in some cultivated plants; 2.1–3 cm long in mature bud with ovoid head 0.31–0.41 of bud length, apex acute; glabrous outside, pubescent inside for up to 3 mm around and below the stamen insertion; tube 1.4–2.4 cm, not or slightly twisted; lobes 0.8–2.6 cm long, obovate, rounded. Stamens inserted in bottom half or around middle of corolla tube; anthers 2.6–3.3 x 0.7–0.9 mm. Ovary 1.5–2 mm long; style + pistil head 4.3–14 mm long. Fruit obliquely ellipsoid, apex acuminate; sometimes torulose; longitudinally ridged; 2.2–4.4(–7) x 0.6–1.1(–1.5) cm; 2–10-seeded. Seeds obliquely ellipsoid with longitudinal grooves; 7–10 x 4–6 mm.


Thailand : NORTHERN: Mae Hong Son, Chiang Mai, Chiang Rai, Nan, Lamphun, Lampang, Phitsanulok; NORTH-EASTERN: Loei; CENTRAL: Saraburi, Krung Thep Maha Nakhon (Bangkok); SOUTH-EASTERN: Trat?


Distribution : N & E India, Sri Lanka (type), Nepal, Bhutan, Bangladesh, Burma, Laos, China (Yunnan).


Ecology : In forests or scrub to 1,300 m alt.


Vernacular : Phut pa (พุดป่า)(Lampang); phut chip (พุดจีบ), phut son (พุดซ้อน), phut suan (พุดสวน), phut sa (พุดสา)(Central).


Uses: Used as an emetic.


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