Volume 2 > Part 1 > Year 1970 > Page 25 > Ochnaceae > Ochna

1. Ochna integerrima (Lour.) Merr.wfo-0001087253

Trans. Am phil. Soc. II. 24: 265. 1935, emend; Kanis, Blumea 16: 36. 1968.— Elaeocarpus integerrimus Lour., Fl. Cochinch.: 338. 1790.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Deciduous undershrub, shrub, or tree, up to 12 m, 45 cm diam. Leaves obovate-oblng or (obovate-) lanceolate, rarely obovate or linear-lanceolate, 6–20(–25) by 2–7 cm, acuminate, sometimes acute or obtuse at apex, acute, sometimes obtuse at base, margin finely denticulate. Inflorescences many-flowered; rachis 0.5–1.5(–4) cm; branches 1–3 flowered, monochasial; pedicels 2–4 cm, up to 5 cm in fruit, the basal 2–8 m persistent. Torus 0.5–1 mm high, 1.5–2.5 mm diam., in fruit up to 6 mm high, 10 mm diam. Sepals 5, ovate to ovate-oblong, 10–16 by 4–9 mm. Petals 5–6(–10), obovate, 15–25 by 8–15 mm, tapering at base or subunguiculate. Stamens (25–)30–60(–75); filaments 2.5–7 mm, unequal, the outermost longest; anthers 4–6 by 0.4–0.8 mm. Carpels 6–10(–15), 0.7–1.1 by 0.5–0.7 mm; style 10–15 by ca 0.5 mm, up to 20 mm in fruit; stigmas sometimes on up to 1 mm long branches. Drupes up to 11 by 8 mm.

Thailand : Throughout the country, except in the Pattani, Yala and Narathiwat of Peninsular Thailand.

Distribution : NE India, East Pakistan, Burma, Andaman and Nicobar Islands, the Malay Peninsula (Perlis, Kedah), Laos, Cambodia, Vietnam (type), Hainan.

Ecology : From sea level up to 1,200 m alt., in moist or dry, deciduous forests, often of a mixed dipterocarp type, on loamy, sandy, or rocky soils. Tall specimens are found near river banks, undershrubs in vegetations where burning is frequent. Large-leaved specimens are found in shady places, small-leaved ones in more open habitats. Flowering occurs shortly before or during the development of new leaves; in Northern Thailand mainly in February and March, towards Peninsular Thailand generally a little earlier, though less restricted.

Vernacular : Tan luang (ตานเหลือง)(Northern); ngaeng (แง่ง)(Northeastern); chang nao (ช้างน้าว)(Northeastern, Eastern); tan nok krot (ตานนกกรด)(Eastern); kradong daeng (กระโดงแดง), kamlang chang san (กำลังช้างสาร)(Central); chang nom (ช้างโน้ม)(Southeastern); chang hom (ช้างโหม), fin (ฝิ่น)(Southwestern); krachae (กระแจะ)(Peninsular).