Volume 7 > Part 3 > Year 2001 > Page 380 > Hydrocharitaceae > Ottelia

2. Ottelia cordata (Wall.) Dandywfo-0000769623

J. Bot. 72: 137. 1934; Cook & Urmi-K.D.Koenig, Aquatic Bot. 20: 146, f. 5. 1984.— Boottia cordata Wall., Pl. Asiat. Rar. i. 51. t. 65. 1829.

Accepted Name : This is currently accepted.

Description : Plants dioecious. Leaves submerged or floating; submerged blades lanceolate, to 70 by 7 cm, entire; floating blades ovate to widely ovate, to 17 by to 8 cm, entire. Inflorescence imperfect, spathes 2-ribbed; staminate to 30-flowered; carpellate 1-flowered. Flowers above surface of water, staminate sepals 11–15 by 3–4 mm, stamens (9–)12(–15); capellate sepals to 25 by 7 mm, carpels 9–20.

Thailand : NORTH-EASTERN: Khon Kaen.

Distribution : Myanmar (type), Cambodia, SE China.

Ecology : Lakes, pools, ponds and slowly flowing rivers, 1,200 m in Thailand.