Volume 7 > Part 1 > Year 1999 > Page 106 > Apocynaceae > Aganosma

3. Aganosma marginata (Roxb.) G.Donwfo-0000899440

Gen. Syst. 4: 77. 1837; Kurz, Fl. Burm. 2: 186. 1877; Hook.f., Fl. Br. Ind. 3: 663. 1882; King & Gamble, J. As. Soc. Beng. 74(2): 495. 1907; Ridl., Fl. Malay Penins. 2: 365. 1923; Pitard, Fl. Gén. I.-C. 3: 1222. 1933; Kerr. Fl. Siam. En. 2: 468. 1939; Backer & Bakh.f., Fl. Java 2: 237. 1965; Middleton, Kew Bull. 51: 469. 1996; Li et al., Fl. China 16: 168. 1995.— Echites marginata Roxb., Fl. Ind. ed. 2, 2: 16. 1832. Fig. 33.

Accepted Name : Amphineurion marginatum (Roxb.) D.J.Middleton
Taxon 55: 502. 2006.

Synonyms & Citations :

Description : Branchlets glabrous or puberulent; branches lenticellate. Leaves: petiole 3.5–12 mm long; blade papery to subcoriaceous, oblong, elliptic or slightly obovate, 2.2–10.8 x 0.6–4.7 cm, apex acuminate or apiculate, base cuneate to weakly cordate; secondary veins 8–18 pairs anastomosing into a clear intramarginal nerve; glabrous or puberulent. Inflorescence 4–17 cm long; glabrous or puberulent; pedicels 2.7–8 mm long. Sepals narrowly ovate to lanceolate, 2–6 x 0.8–1.6 mm, apex acute to acuminate; glabrous or puberulent; many colleters inside at base. Corolla white or cream; tube 4.4–8 mm long; lobes 8–17 mm long, long and narrow, apex acute or obtuse; glabrous or puberulent outside, pubescent inside. Stamens inserted at 2.2–3.2 mm from base; anthers 2.5–3.2 x 0.4–0.7 mm. Disk usually shorter than ovary, not narrower at top; 5-lobed; 0.2–0.7 mm long. Ovary 0.4–1.2 mm long, glabrous or, rarely, sparsely and minutely puberulent; style + pistil head 2.7–3.6 mm long. Fruit 28–74 cm long, 0.4–1 cm wide; lenticellate; glabrous. Seeds 8–12 x 1.2–2.3 mm, flattened; coma 2.4–5 cm long.

Thailand : NORTHERN: Mae Hong Son, Chiang Mai, Lamphun, Phrae, Nakhon Sawan; NORTH-EASTERN: Phetchabun, Loei, Udon Thani, Sakon Nakhon, Khon Kaen; EASTERN: Chaiyaphum, Nakhon Ratchasima, Buri Ram, Si Sa Ket, Ubon Ratchathani; SOUTH-WESTERN: Kanchanaburi, Ratchaburi, Prachuap Khiri Khan; CENTRAL: Saraburi; SOUTH-EASTERN: Prachin Buri, Chon Buri, Rayong, Chanthaburi, Trat; PENINSULAR: Chumphon, Ranong, Surat Thani, Krabi, Nakhon Si Thammarat, Trang, Songkhla, Satun.

Distribution : China, India, Nepal, Bhutan, Bangladesh (type), Burma, Laos, Vietnam, Cambodia, Malaysia, Indonesia, the Philippines.

Ecology : In primary or secondary, evergreen or deciduous forests on a wide variety of soil types or scandent shrub in more open areas to 850 m alt.

Vernacular : Khruea sai ton (เครือไส้ตัน), duadin (เดื่อดิน), duanam (เดื่อน้ำ), duakhruea (เดื่อเครือ)(Northern); sai tan (ไส้ตัน)(Nakhon Ratchasima); yan dueai bit (ย่านเดือยบิด)(Surat Thani); dueai dip (เดือยดิบ)(Krabi).