The plants included in this tribe agree more or less with the common Burnet (_Sanguisorba officinalis_). This plant, which is found in great abundance in rich meadows on calcareous soils, has its flowers produced in a close terminal spike. The flowers have no petals, but the calyx, which is four-cleft, is pink, and there are four glossy brown bracts to each flower; so that, on the whole, the flowers are rather ornamental, notwithstanding their want of petals. There are only four stamens, and two carpels with slender styles and pointed stigmas. The leaves are pinnate, consisting generally of nine leaflets, and each pair of leaflets is furnished with two stipules. The Alchemilla, or Ladies’ Mantle, is nearly allied to the Burnet; but the flowers are in small corymbs, instead of spikes. The flowers have no petals; but the limb of the calyx is coloured, and divided into eight unequal segments. There are generally four stamens and only one style, though sometimes there are two. The ovary contains one or two carpels, each containing a single seed, and these when ripe are enclosed in a capsule, formed by the tubular part of the calyx becoming hardened. The leaves are lobed, plaited, and serrated at the margin; and those of the Alpine species (_A. alpina_), which is often found wild on the Scotch mountains, are covered with a beautiful silky substance of the most brilliant whiteness. CHAPTER IV. THE ORDER ONAGRACEÆ: ILLUSTRATED BY THE DIFFERENT KINDS OF FUCHSIA; ŒNOTHERA, OR THE EVENING TREE-PRIMROSE; GODETIA; EPILOBIUM, OR THE FRENCH WILLOW-HERB; AND CLARKIA. The type of this order is considered to be the common evening Tree-primrose (_Œnothera biennis_), and it takes its name from _Onagra_, the name given by Tournefort to the genus. The Fuchsia seems so unlike the Œnothera, that it appears difficult to any but a botanist to trace the connexion between them; but, botanically, they agree in the position of the ovary, which in both is so placed as to seem rather to belong to the flower-stalk than to the flower; and this peculiarity is found in all the genera included in the order. The parts of the flowers are also always either two, four, eight, or twelve; as, for example, there are four petals and eight stamens in both the Fuchsia and the Œnothera. THE GENUS FUCHSIA.