294 PRACTICAL BOTANT. 



16. Zepidium, L. Pepperwort. Peppergrass. Species 4. 



17. Cqpsella, Yent. Shepherd's Pursei Species: 



GapseUa JBursa-Pastoris, Moench. 



18. Subularia, L. Awlwort. Species: 



Subularia aquatica, L. 



19. Senehiera,'D.G. Wart-Cress. Swine-Cress. Species 2. 



20. XJakile, Tourn. Sea-rocket. Species : 



Gakile Americana, Nutt. 



21. Jiapha7ius, h. Radish. Species: 



Raphanus Saphanistrum, L. 

 ( WUd Jtadish. Jointed Charlock.) 



ORDER XIII. 



cappaeidace^, oe cappaeids. 

 Genus : 



1. Polatiisia, Raf. Species : 



Polanisia graveolens, Raf. 



Gehtis: 



ORDER XIV. 



EESEDAC^, OE MIGNONETTES. 



1. Jteseda, L. Mignonette. Dyer's Rocket. Species : 

 Jieseda luteola, L. Dyer's Weed, or Weld. 



ORDER XV. 



tiolace^, oe violets. 

 Geneea : 



1. Solea, Ging. Green Violet. Species : 



Solea concolor, Ging. 



2. Yiola, L. Violet. Heart's-ease. Species 18. 



ORDER XVI. 



cistace^, ok eock-eoses. 

 Geneea : 



1. Helianthemum, Tourn. Rock-Rose. Species 2. 



2. Sudsonia, L. Species 2. 



3. Zechea, L, Pinweed. Species 3. 



