Of the genera included in this order (which were formerly included in Saxifragaceæ), Escallonia is the most important, as it contains several species of ornamental South American shrubs. The flowers of the different species vary considerably: in _E. rubra_, they are produced singly, and the corolla, which is pink, is tubular, with a short, five-cleft limb; but in _E. montevidensis_ the flowers, which are white, are produced in panicles, and have spread petals. The flowers of both species have five stamens, and two carpels, the styles of which are combined. The leaves are simple, alternate, and without stipules. Of the other plants contained in the order, I may mention that _Itea virginica_ is a North American shrub, with white flowers; and _Anopteris glandulosa_, which is also a shrub with white flowers, is a native of Van Diemen’s Land. ORDER XCVI.—SAXIFRAGACEÆ. The genus Saxifraga of Linnæus has been divided so as to form several genera; but they do not appear to be generally adopted. The flowers of all the species are rather small, and they are generally racemose, or panicled; and the corolla consists of five spreading petals with short claws, and there are twice that number of stamens. Among the most common species may be mentioned London Pride (_Saxifraga_ or _Robertsonia umbrosa_), and the Meadow Saxifrage (_Saxifraga_ or _Leiogyne granulata_), the flowers of the latter being large, and produced singly. In the genus Hydrangea the flowers are disposed in corymbs, and they have five petals, ten stamens, and from two to five styles; but in the outer flowers of the corymb the stamens and pistil are often wanting. The genera Galax and Francoa, which were first included in Crassulaceæ, and afterwards in Saxifragaceæ, are now made into a new order called Galacineæ, or Francoaceæ, which is introduced here. ORDER XCVII.—CUNONIACEÆ. This order, which was separated from Saxifragaceæ by Dr. Brown, contains principally hothouse plants with erect spicate racemes or panicles of small flowers. Weinmannia, Bauera, and Cunonia are the principal genera. ORDER XCVIII.—UMBELLIFERÆ—UMBELLIFEROUS PLANTS OR THE PARSLEY TRIBE.