Volume 10 > Part 2 > Year 2010 > Page 156 > Celastraceae > Euonymus

1. Euonymus cochinchinensis Pierrewfo-0000681676

Fl. Forest. Cochinch.: t. 309A; 1894; Pit. in Lecomte, Fl. Indo-Chine 1: 873, fig. 108: 6. 1912; Tardieu in Lecomte, Fl. Indo-Chine Suppl.: 781. 1948; Blakelock, Kew Bull.: 255. 1951; Ding Hou in Steenis, Fl. Males. ser. 1, 6: 248. 1963; Kochumen & Whitmore, Tree Fl. Malaya 1: 162. 1972; Kochummen, Tree Fl. Sabah Sarawak 1: 118. 1995; Hajra, Rao & Mudgal, Fl. Andaman Nicobar Isl.: 265. 1999; J.S.Ma, Thaiszia 11: 149, fig. 150. 2001. Plate XXV: 3.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Small trees, up to 12 m high by 19 cm diam.; branchlets terete, rarely angular. Leaves chartaceous to subcoriaccous, elliptic to elliptic-oblong, sometimes obovate-oblong, 4.5–16(–25) by 2.5–7(–10) cm, base cuneate, rarely obtuse or rounded, apex acute, acuminate, margin entire, sometimes remotely serrate, nerves and veins obscure or slightly elevated on both surfaces, petiole 3–8(–15) mm long. Inflorescences axillary, extra-axillary, and sometimes on internodes, usually at the basal part of the new twig, cymose, 3–10.5 cm long, loosely, dichotomously (up to 5 times) branched; peduncle 1–8 cm long; bracts lanceolate, ca 2 mm long, fimbriate; pedicels 3–5 mm long. Flowers 5-merous, light yellowish or greenish yellow. Calyx lobes sub-reniform, 1.5–2.5 by 2–4 mm, shortly fimbriate. Petals broad-obovate, ca 4.5 by 4 mm, margin usually fimbriate, areolate on the inner surface. Disk fleshy, suborbiculate or obscurely 5-angular, ca 3 mm diam. Stamens inserted between the pistil and disk margin; filaments ca 2 mm long, flat, subulate; anthers ± deltoid, ca 1 mm long, obtuse or slightly apiculate. Pistil ca 2 mm above the disc, gradually narrowed upwards; stigma obscure. Fruits broad-obovoid or subglobose, ca 10 mm long and wide, concave at the apex, often deeply 5-lobed. Seeds ellipsoid, obtuse at both ends, 5–6 by 3–4 mm.

Thailand : NORTHERN: Chiang Mai (Ang Ka Noi, Doi Angka, Doi Duan, Doi Inthanon, Doi Mon Angket, Doi Pa Kao; Doi Suthep – syntypes of Euonymus similis: Kerr 749, Kerr 736, Kerr 736a, – type of E. colonoides: Kerr 3194; Mae Chaem, Mae Taeng, Mae Klang, Mae Ta Man, Mae Tuen, Mae Wang), Chiang Rai (Doi Tung), Nan (Mae Piang); NORTH-EASTERN: Loei (Phu Kradueng), Nong Bua Lam Phu, Nong Khai (Bungkhla); EASTERN: Chaiyaphum (Phu Khieo); CENTRAL: Nakhon Nayok (Muang); PENINSULAR: Ranong (Hat Sai Dam), Surat Thani (Tako), Phangnga (Takua Pa), Krabi, Nakhon Si Thammarat, Phatthalung (Ko Si Kao Ha), Songkhla (Khao Kaeo), Narathiwat (Waeng).

Distribution : India (Andaman Islands), Myanmar, Cambodia, Vietnam (type), Malay Peninsula, Indonesia, the Philippines.

Ecology : Evergreen (sometimes also in deciduous or seasonal) forests, from lowland to 1,850 (–2,150) m alt. Flowering: February, March, May–August, November, December; fruiting: April, June–December.

Vernacular : Maha kanang (มะหากาหนัง)(Lao, Chiang Mai); ta si sawi (ตาสีไสว)(Chiang Mai).