Citation: L., Sp. Pl. 970 (1753).

Derivation: Greek name of a water-plant.

Synonymy: Not Applicable

Common name: None

Description:
Thallus 1-12 mm long, more or less flattened, with 2 lateral pockets; roots 0 to 1.

Inflorescence produced in one of the 2 lateral pockets, consisting of 1 female and 2 male flowers together in a membranous spathe; male flower composed of 1 stamen with a terminal 2-celled anther; female flower composed of a flask-shaped ovary with 1-several ovules and a solitary terminal style and a concave stigma.

Distribution:  About 15 species, cosmopolitan.

Biology: No text

Key to Species:

1. Thallus floating on the water surface, elliptic to obovate or rounded	L. disperma 1.
1. Thallus floating beneath the water surface, broadly linear to linear- lanceolate	L. trisulca 2.

Author: Not yet available