ELATINACEAE

Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A., 1981, Flora Europaea. Volume 2. Rosaceae to Umbelliferae, Cambridge University Press : 295

CXV. ELATINACEAE 1

Aquatic or marsh herbs. Leaves simple, opposite or whorled, stipulate. Flowers hermaphrodite, regular, hypogynous, 2- to 5-merous, solitary or in cymes. Sepals free or connate at base, as many as petals. Petals free, imbricate. Stamens as many or twice as many as petals. Ovary superior, 2- to 5-locular; styles free; ovules numerous; placentation axile. Fruit a septicidal capsule.

Sepals 5, with membranous margin, acute; leaves serrate 1. Bergia Sepals 3 or 4, membranous throughout, obtuse; leaves entire

2. Elatine