2. Trigynia has only Rheum, the Rhubarb, nearly related to Rumex.
3. Hexagynia. Butomus umbellatus, Engl. Bot. t. 651, a great ornament to our rivers and pools.
Class 10. Decandria. Stamens 10. Orders 5.
1. Monogynia. A numerous and fine assemblage, beginning with a tribe of flowers more or less correctly papilionaceous and leguminous, which differ very materially from the rest of that natural order in having ten stout, firm, separate stamens. See Cassia, Curt. Mag. t. 107, 633, and Sophora, t. 167; also Exot. Bot. t. 25—27, and Annals of Botany, v. 1. 501.
The Ruta, Rue, and its allies, now become very numerous, follow. See Tracts on Nat. Hist. 287. Dictamnus, vulgarly called Fraxinella, is one of them. Dionæa muscipula, see p. 174, stands in this artificial order, as do the beautiful Kalmia, Rhododendron, Andromeda, Arbutus and Pyrola, Engl. Bot. t. 213, &c.
