tooth-wort, or Tooth-violet: A genus of the filicula order, belonging to the tetradynamia clas of plants; and in the natural method ranking under the 39th order, *Siligula*. The filicula parts with a spring, and the valvules roll spirally backwards; the stigma is emarginated; the calyx elongating longitudinally. There are three species, all of them hardy perennials; producing annual stalks 12 or 18 inches high, adorned with many-lobed leaves, and spikes of quadrupetalous cruciform flowers of a red or purple colour. They delight in shady places; and are propagated either by seeds or parting the roots. The seeds may be sown in autumn or early in the spring, in a shady border of light earth; and when the plants are three inches high, they may be planted where they are to remain. The time for parting the roots is in October or November, or early in the spring.