Crucifer ob , Capparidacece and Cistacem. 
57 
Brysimum, Tourn. Treacle mustard. 
50. E. parviflorum , Nutt. 
„ Picnic Point, Madison. Rare. 
Sisymbrium, Tourn. Hedge mustard. 
51. S. canescens, Nutt. Tansy mustard. 
Sandy shores of Lakes Monona, Wabesa and Win- 
gra. Rare. 
52. *S. officinale, Scop. Hedge mustard. 
Common throughout the region. 
Brassica, Tourn. 
53. *B. Sinapistrum, Boiss. Charlock. 
Throughout the region. Abundant. Commonly 
known here as “black mustard. ” 
54. *B. nigra, Koch. Black mustard. 
Observed in two places in the city of Madison and 
west of the city near an old dwelling. To be 
looked for elsewhere. Introduced. 
Capsella, Medic. Shepherd’s purse. 
55. *C. Bursa-pastoris, Moench. 
Everywhere as a weed. 
Lepidium, Tourn. Pepperwood. Peppergrass. 
56. *L. Virginicum , L. Wild peppergrass. 
Common throughout the region. 
Capparidace^;. (Caper Family.) 
Pol anisia, Raf. 
57. P. GRAVEOLENS, Raf. 
G-rowing occasionally along railroads. 
Rare. 
Introduced. 
Cistacem. (Rock-rose Family.) 
Helianthemum, Tourn. Rock-rose. 
58. *H. Canadense , Michx. Frost-weed. 
Common in dry thickets and pasture land. 
