434 



BOTANY 



The flowers of the Leguminosae regularly show ten stamens, and a single car- 

 pel which develops into the characteristic legume or pod. 



The flowers of the Csesalpinese (Fig. 423) and Mimosese (Fig. 424, H ) are nearly 

 actinomorphic, with free stamens ; the Papilionaceae have the characteristic but- 

 terfly-shaped flowers (Fig. 424, A) and the stamens are " Monadelphous " (all 

 united) or " Diadelphous " (nine united and a single free stamen). Cercis (Fig. 

 424, F) is to some extent intermediate in character between the Csesalpinese and 

 the Papilionacese. 



FIG. 425. A-E, Geranium maculatum. F-H, Linum Virginianum. H, section of 

 young fruit, enlarged. I-K, Oxalis violacea. K, androecium and gynaecium, 

 showing the heterogamy of the flower. 



While most of our native Leguminosse are herbaceous plants of moderate size, 

 there are several genera which are woody climbers or trees. Of these may be 

 mentioned Wistaria, Cercis, Robinia, Gleditschia, Gymnocladus, and Acacia. 



Order VI. Geraniales 



The Geraniales include herbaceous and woody plants, some of them e.g. 

 Erythroxylon trees of some size. The flowers are usually hermaphrodite (Ge- 

 ranium, Oxalis), but may be diclinous (Euphorbiacese). The flowers are either 



