MENYANTHACEAE

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1972, Flora Europaea. Volume 3. Diapensiacea to Myoporaceae, Cambridge: Cambridge University Press : 67

CXLI. MENYANTHACEAE 2

Aquatic or semi-aquatic perennial herbs. Leaves alternate, except sometimes on flowering stems. Flowers 5-merous, actinomorphic, heterostylous. Calyx deeply divided. Corolla deeply divided; lobes valvate in bud. Stamens inserted on the corolla-tube or in the sinuses between the lobes. Ovary superior to semiinferior, 1 -locular; placentae parietal; ovules numerous. Fruit a capsule.

Leaves 3-foliolate; flowers pink or white

1. Menyanthes Leaves simple; flowers yellow

2. Nymphoides