1697. They divide into two great groups, into the quinary and sexanary. Since among the quinary, herbaceous stalks with nodes and spathe-leaves, but capsules only, occur; they must be arranged in the lowest rank. The sexanary bear fruits. 1698. First order, _Seminariæ parenchymatosæ_. Herbs with nodes and spathose leaves, together with numerous, mostly one-seeded, carpels, attached in an irregular manner to a median columella--_Ranunculaceæ_ and _Geraniaceæ_. 1699. Second order, _S. vaginatæ._ Trees having many-seeded carpels, coalesced like the style, _Theaceæ_, _Tiliaceæ_, _Elæocarpaceæ_. 1700. Third order, _S. axonales._ Bushes and shrubs with free, mostly simple, leaves, ovaria, mostly one-seeded, and arranged in a circle around the mediate axis or columella; anthers bilocular--_Hermanniaceæ_, _Dombeyaceæ_, _Sterculiaceæ_, and _Büttneriaceæ_. 1701. Fourth order, _S. florales._ For the most part trees, having frequently divided leaves and similar ovaria, yet mostly many-seeded and connate--_Malvaceæ_ and _Bombaceæ_. 1702. Fifth order, _S. fructuariæ._ Corollæ mostly sexanary, ovaria in a circle without a columella--_Magnoliaceæ_, _Menispermaceæ_, _Dilleniaceæ_, _Anonaceæ_. They divide into sixteen families. (Vid. Tab. B.) _CLASS XI._ _Ovarium-plants._ 1703. Hypogynous Polypetalæ with perfect multilocular ovarium--_Polygaleæ_, _Melieæ_, _Aurantiaceæ_, _Platanaceæ_, _Malpighieæ_, _Sapindeæ_. 1704. While in the preceding class the number of the carpels was usually indeterminate; it is here limited to three and five. In the one, they usually stood around a middle columella or axis, in the other, they form a true capsule with perfect partition-walls or septa, and a single style. The number of the seeds is moderate, i. e. there are more than one, but they are easily counted. They are therefore of mediate size, having no kernels, as is the case in the nuts, but also no granules, as in the berries or poppy capsules. In the preceding class the fruits were rare; here they occur frequently in the upper orders. The number of the floral parts is, throughout the present class, five, that of the stamina five or ten, and they are seldom coalesced; the stalk also passes through all the stages of development from that of the herb through the shrub into the tree. The leaves are seldom spathe-like, but frequently coriaceous and aciculate, as in their predecessors the _Heaths_; many are pinnated. 1705. First order, _Capsulariæ parenchymatosæ_--_Rutaceæ_. Herbs and shrubs frequently provided with aciculate and coriaceous leaves; corollæ regular with ten stamina; ovarium consisting of five carpels, which separate when ripe, and contain few seeds--_Rutaceæ_, _Diosmaceæ_. 1706. Second order, _C. vaginatæ._ Shrubs and trees with similar corollæ and ovaria, which are nevertheless frequently separated and fleshy--_Quassiaceæ_, _Ochnaceæ_.