[Illustration: FIG. 114.--_Calycifloræ_ (_Rosifloræ_). _A_, inflorescence of strawberry (_Fragaria_), × ½. _B_, a single flower, × 1. _C_, section of _B_. _D_, floral diagram. _E_, vertical section of a cherry-flower (_Prunus_), × 1. _F_, vertical section of the flower of _Spiræa_, × 2. _G_, vertical section of the bud of a wild rose (_Rosa_), × 1. _H_, vertical section of the young fruit, × 1. _I_, section of the flower of an apple (_Pyrus_), × 1. _J_, floral diagram of apple.] From the examples given, it will be seen that the order includes not only some of the most ornamental, cultivated plants, but the majority of our best fruits. In addition to those already given, may be mentioned the raspberry, blackberry, quince, plum, and apricot. [Illustration: FIG. 115.--_Calycifloræ_ (_Leguminosæ_). _A_, flowers and leaf of the common pea, _Pisum_ (_Papilionaceæ_), × ½. _t_, tendril. _st._ stipules. _B_, the petals, separated and displayed, × 1. _C_, flower, with the calyx and corolla removed, × 1. _D_, a fruit divided lengthwise, × ½. _E_, the embryo, with one of the cotyledons removed, × 2. _F_, diagram of the flower. _G_, flower of red-bud, _Cercis_ (_Cæsalpinaceæ_), × 2. _H_, the same, with calyx and corolla removed. _I_, inflorescence of the sensitive-brier, _Schrankia_ (_Mimosaceæ_), × 1. _J_, a single flower, × 2.] The last order of the _Calycifloræ_ and the highest of the _Choripetalæ_ is the order _Leguminosæ_, of which the bean, pea, clover, and many other common plants are examples. In most of our common forms the flowers are peculiar in shape, one of the petals being larger than the others, and covering them in the bud. This petal is known as the standard. The two lateral petals are known as the wings, and the two lower and inner are generally grown together forming what is called the "keel" (Fig. 115, _A_, _B_). The stamens, ten in number, are sometimes all grown together into a tube, but generally the upper one is free from the others (Fig. 115, _C_). There is but one carpel which forms a pod with two valves when ripe (Fig. 115, _D_). The seeds are large, and the embryo fills the seed completely. From the peculiar form of the flower, they are known as _Papilionaceæ_ (_papilio_, a butterfly). Many of the _Papilionaceæ_ are climbers, either having twining stems, as in the common beans, or else with part of the leaf changed into a tendril as in the pea (Fig. 115, _A_), vetch, etc. The leaves are usually compound.