amples of this Order. They all have sessile stigmas.
Class 5. Pentandria. Stamens 5. A very large class.—Orders 6.
1. Monogynia. One of the largest and most important Orders of the whole system. The genera are enumerated first artificially, according to the corolla being of one petal or more, or wanting; inferior or superior; with naked or covered seeds; but stand in the system according to their affinities, and compose some natural orders; as Asperifoliæ, rough-leaved plants, which have a monopetalous inferior corolla, and four naked seeds, with always more or less of spinous bristles or callous asperities on their foliage; see Borago, Engl. Bot. t. 36, Lycopsis, t. 938, and Echium, t. 181. Next comes that most elegant tribe of spring plants denominated Preciæ by Linnæus, Primula, t. 4—6, Cyclamen, t. 548, the charming alpine Aretia, and Androsace, Curt. Mag. t. 743. These are followed by another Linnæan order, nearly akin, called Rotaceæ, from the wheel-shaped corolla, Hottonia, Engl. Bot. t. 364, Lysi-
