4 



61 Ar^kbis lyrata, L. 



62 Arabia birsuta, Scop. 



63 Arabia laevigata, DC. 



64 Arabis Cansdensis, L, 



65 Turritis jr^abTa, L. 



66 Turritis stricta^ Graham. 



pf 



1 



Gray. 



Igaris, R. Br. 



69 Erjaimum cLeirantboides, L. 



^0 SisjrabriuT5 officinale, Scop, 



71 Sisymbrium canescens, Nutt, 



72 Sinapis nigra, L, 



i^ 



<4 Sinapis arvensis, L. 



75 Draba arabisans, Michx, 



76 Draba neinorosa, L, 



77 Draba vema, L^ 



^8 Camelina sativa, Grants. 



9 Lepidiuna Virginicum, L. 



80 Lepidium intermediam^ Gray. 



81 Capsella Bnrsa-pastoriSj Mceacb 



82 Cakile Americana ; Nutt 



cappaeidacej:. 



83 Polanisia grareolens, Rafj 



