Volume 7 > Part 1 > Year 1999 > Page 101 > Apocynaceae > Beaumontia

1. Beaumontia grandiflora Wall.wfo-0000321708

Tent. Nap. 15. 1824; Kurz, Fl. Burm. 2: 179. 1877; Hook.f., Fl. Br. Ind. 3: 660. 1882; Pitard, Fl. Gén. I.-C. 3: 1238. 1933; Kerr, Fl. Siam. En. 2: 475. 1939; Tsiang & P.T.Li, Fl. Reip. Pop. Sin. 63: 133. 1977; Lý, Fedd. Rep. 97: 644. 1986; Rudjiman, Agric. Uni. Wag. Pap. 86–5: 11. 1987; Li et al., Fl. China 16: 176. 1995. Fig. 32.

Accepted Name : This is currently accepted.

Description : Leaves: petiole 1–3 cm long; blade elliptic to obovate, 8–29 x 3–11 cm, apex acuminate to caudate, base cuneate; tomentose when young becoming almost glabrous. Inflorescence lax; 15–25 cm long; peduncle 3–4(–6.5) cm long; 3–19-flowered. Sepals leafy; ovate, (3–)4.5–5.3 x 1.5–5 cm, apex acuminate; sparsely tomentose. Corolla white; tube 8.2–12 cm long; lobes (1.8–)4–5.5 cm long, apex acuminate; tomentose outside and inside on lobes, glabrous lower down. Stamens inserted at 2.5–4 cm from corolla base; filaments (3.3–)4.5–6 cm long, glabrous; anthers 13–16 x 2–3.4 mm. Disk pubescent at top. Ovary 2–3 mm, pubescent; style + pistil head 8.2–10 cm long, sparsely pubescent. Fruit 22–31 cm long, 5–6 cm wide; ellipsoid, obtuse at the apex. Seeds 15–25 x 4–7 mm; obtuse at both ends; coma 2–7 cm long.

Thailand : NORTHERN: Lampang; NORTH-EASTERN: Loei; EASTERN: Nakhon Ratchasima. Also cultivated elsewhere.

Distribution : Nepal (type), Bhutan, India, Bangladesh, Burma, S China, Vietnam.

Ecology : In forests, 130 m alt.

Vernacular : Hiranyika (หิรัญญิการ์)(Central); tao tum yam chang (เถาตุ้มยำช้าง)(Northern).

Notes: Fruit characters taken from Rudjiman (1987).