192 BOTANY. 



The second family, the fumitories (Fumariacece) are delicate, 

 smooth plants, with curious flowers and compound leaves. The 

 garden bleeding-heart (Dicentra spectabilis) and the pretty, wild 

 Dicentras (Fig. 103, F) are familiar to nearly every one. 



Other examples are the mountain fringe (Adlumia), a climb- 

 ing species, and several species of Corydalis, differing mainly 

 from Dicentra in having the corolla one-sided. 



The mustard family (Cruciferce) comprises by far the greater 

 part of the order. The shepherd's-purse, already studied, 

 belongs here, and may be taken as a type of the family. There 

 is great uniformity in all as regards the flowers, so that the 

 classification is based mainly on differences in the fruit and 

 seeds. Many of the most valuable garden vegetables, as well 

 as a few more or less valuable wild plants, are members of the 

 family, which, however, includes some troublesome weeds. 

 Cabbages, turnips, radishes, with all their varieties, belong 

 here, as well as numerous species of wild cresses. A few like 

 the wall-flower (Cheiranthus) and stock (Mattliiola) are culti- 

 vated for ornament. 



The last family is the caper family (Capparidece) , repre- 

 sented by only a few not common plants. The type of the 

 order is Capparis, whose pickled flower-buds constitute capers. 



The fourth order (Cistiflorce) of the Aphanocyclce is a very 

 large one, but the majority of the sixteen families included in 

 it are not represented within our limits. The flowers have 

 the sepals and petals in fives, the stamens either the same or 

 more numerous. 



Among the commoner members of the order are the migno- 

 nettes (Resedacece) and the violets (Violacece), of which the 

 various wild and cultivated species are familiar plants (Fig. 

 104, A, M). The sundews (Droseracece) are most extraor- 

 dinary plants, growing in boggy land over pretty much he 

 whole world. They are represented in the United States by 

 several species of sundew (Drosera), and the still more curious 

 Venus's-flytrap (Dioncea) of North Carolina. The leaves of 



