in botany: A genus of the monogynia order, belonging to the triandria clas of plants; and in the natural method ranking under the third order, Calamariae. The glumes are palaceous and imbricated all round; there is no corolla; and only one seed furnished with a very long down.

ERITHALIS, in botany: A genus of the monogynia order, belonging to the pentandria clas of plants; and in the natural method ranking with those of which the order is doubtful. The corolla is quinquepartite; the calyx urceolate or bladder-like, the berry decalocular inferior.