MUSTARD FAMILY 289 
PLATE 57 
1. Stenophragma Thaliana. 2. Hesperis matronalis 
difolia. 4 Arabis laevigata. 5. A. 
graveolens. 8. Cardamine hirsuta. 9. Cleome spinosa. 
. 3. Cardamine belli- 
virginica, 6. A. glabra. 7. Polanisia 
