0514 



The sections of the calyx have no appendages. The fruit is globular, compressed, and 

 slightly bristly. 



FLOWERS: July and August. 



RANGE: North America. Naturalized in our gardens since the beginning of the last 

 century. 



The field rosebush, Rosa arvensis, Linn., is a small, twisted, frequently trailing 

 shrub. The stem and branches are smooth and have reddish hooked thorns. The leaves 

 have five to seven ovoid dentate leaflets. In the center of each flower there's a disc from 

 which extends a small column that terminates in opened stigmas. This feature sets this 

 rosebush apart from all of the others. 



FLOWERS: in June. 



RANGE: around Paris and in several other parts of France. 



USES. All of these rosebushes are decorative in gardens and in large parks. The 

 Virginia rosebush is especially impressive because of its beautiful flowers that double 

 under cultivation. 



CULTIVATION. The same as for the other species. The Champagne rosebush is 

 the only one that's a little more delicate. 



KEY TO PLATES. 



456. Champagne rosebush. 



457. Evergreen rosebush. 1. Calyx, stamens, and pistils. 2. Fruit. 



458. Alpine rosebush. 1 . Calyx and stamens. Fruit. 



459. Virginia rosebush. 1 . Fruit. 



460. Field rosebush. 1. Calyx and stamens. 2. Fruit. 



