The plants belonging to this order have alternate leaves, which are generally compound, and frequently have the common petiole tumid; they have also two stipules at the base of the petiole, and frequently two others to each leaflet. The pedicels are usually articulated, and the flowers are furnished with small bracts. The flowers have a five-parted calyx, and a corolla, sometimes papilionaceous, and sometimes spreading, which has never more than five petals, though it has frequently less. The fruit is a legume, though sometimes, when there is only one seed, it has the appearance of a drupe. There are eleven sections given in De Candolle’s Prodromus, viz., 1. _Sophoreæ_, the Sophora tribe; 2. _Loteæ_, the Lotus tribe; 3. _Hedysareæ_, the Sainfoin tribe; 4. _Vicieæ_, the Vetch tribe, (including the Pea and Bean); 5. _Phaseoleæ_, the Kidney-bean tribe; 6. _Dalbergia_, the Gum-dragon tribe; 7. _Swartzia_; 8, _Mimoseæ_, the Mimosa tribe; 9. _Geoffrea_, the Earth-nut tribe, (including the Earth-nut _Arachis_, and the Tonquin Bean, _Dipterix_); 10. _Cassieæ_, the Cassia tribe; and 11. _Detarieæ_. Some botanists include Moringa, the Horse-radish tree, in Leguminosæ, but others make it a separate order under the name of Moringeæ. ORDER LXVIII.—ROSACEÆ.—(SEE CHAP. III. IN P. 50.) The flowers have five sepals, combined in their lower part into a tube, but divided above into five lobes; and the corolla has generally five petals. There are numerous carpels, which are usually inclosed in the fleshy tube of the calyx. The ovary is one-celled, and there is seldom more than one seed, and scarcely ever more than two. The leaves are alternate, generally compound, and always furnished with stipules. De Candolle divides the order into eight tribes, viz., 1. _Chrysobalaneæ_; 2. _Amygdalineæ_; 3. _Spiraceæ_; 4. _Neuradeæ_; 5. _Dryadæ_, or _Potentilleæ_; 6. _Sanguisorbeæ_; 7. _Roseæ_; and 8. _Pomaceæ_. Of these, the first, second, third, and eight, are made separate orders; the fifth, sixth, and seventh are retained in Rosaceæ. Neuradeæ was first removed to Ficoideaceæ, and afterwards made a separate order; and another order has been made, called Quillageæ, including only the genera Kageneckia and Quillaja. ORDER LXIX.—CALYCANTHACEÆ.