The Cape Jasmine (_Gardenia radicans_) is a well-known greenhouse plant, remarkable for the heavy fragrance of its large white flowers, which die off a pale yellow, or buff. The calyx has a ribbed tube, and the limb is parted into long awl-shaped segments. The corolla is salver-shaped, that is, it has a long tube and a spreading limb, the limb being twisted in the bud. There are from five to nine anthers, having very short filaments which are inserted in the throat of the corolla. The stigma is divided into two erect fleshy lobes. The ovary is one-celled, but there are some traces of membranes, which would, if perfect, have divided it into from two to five cells. The seeds are numerous and very small. _Gardenia radicans_ is a dwarf plant, which flowers freely when of very small size, and is easily propagated from the readiness with which its stem throws out roots; but _G. florida_ is a shrub five or six feet high, and much more difficult to cultivate. In both species the flowers are generally double, and the petals are of a fleshy substance, which gives the corolla a peculiarly wax-like appearance. There are many other species, but the two above-mentioned are the most common in British gardens. _Burchellia capensis_ is generally considered to belong to this division of Rubiaceæ, though its flowers bear more resemblance to those of Cinchona; and the singular plant called _Mussæuda pubescens_, the flowers of which are small and yellow, but the bracts are so large and so brilliantly white as to look like flowers; _Posoqueria versicolor_, an ornamental plant lately introduced, belong to this division. THE GENUS RONDELETIA AND ITS ALLIES. [Illustration: FIG. 37.—SECTION OF THE FLOWER OF RONDELETIA.] _Rondeletia odorata_, sometimes called _R. coccinea_, and sometimes _R. speciosa_, is a very fragrant stove shrub, a native of Cuba. The flowers are produced in corymbs, and their botanical construction is shown in the magnified section _fig._ 37. In this _a_ is the ovary inclosed in a hairy calyx; _b_ shows the limb of the calyx cut into awl-shaped segments; _c_ shows the manner in which the very short filaments of the anthers are inserted in the throat of the corolla; _d_ shows the termination of the dilated receptacle which lines the tube of the corolla; and _e_ the segments of the limb. I have given the section of this flower, that my readers may compare it with the section of the flower of the Cinchona in _fig._ 36, in p. 87, and may see the general resemblance which connects the two plants in the same order, and the differences which mark them to be of different genera. _Fig._ 38 is a tuft of flowers of _Rondeletia odorata_. _Wendlandia_ is nearly allied to Rondeletia; as is the magnificent _Portlandia grandiflora_, which somewhat resembles _Brugmansia lutea_ in shape though not in colour, as its flowers are white. [Illustration: FIG. 38.—PART OF THE HEAD OF FLOWERS OF RONDELETIA.] THE GENUS COFFEA AND ITS ALLIES.