FLORA OF MICHIGAN. 73 



-3 



*88. X. ARMORACIA, Fries. Horseradish. 



Used in spring as a condiment. Escaped from gardens into waste places. Frequent. 

 41. BARB ARE A, R. Br. WINTER CRESS. 



89. B. vulgaris, R. Br. Yellow Rocket. Common Winter Cress. Th. 



So. Haven j Ann Arbor Allmendinger Cat.; Macomb county; Hubbardston; and N. into the U. P. 

 where it is indigenous and frequent. 



90. var. stricta, Regel. 

 Keweenaw Co., F. 



42. HESPERIS, Tourn. ROCKET. 



91. H. MATRONALJS L. Dame's Violet. 



Escaped from cultivation at Cassopolis, Wheeler; Shore of Lake Huron, T. & G., Flora of N. Am. 



43. ERYSIMUM, Tourn. TREACLE MUSTARD. 



*92. E. clieiranthoides, L. Worm-seed Mustard. 

 Gratiot Co.; Grayling, Hicks ; Cheboygau county, B. & K. Keweenaw Co., F. 



44. SISYMBRIUM, Tourn. HEDGE MUSTARD. 



93. S. liumile, Meyer. 



Isle Royal, Gillman ; Mackinac, G. H. Hicks; Macomb county; Grand Haven, etc. Infrequent. 



94. S. canescens, Nutt. Tansy Mustard. Th. 

 Shores of Great Lakes, etc. Pitcher, Houghton, Winchell, et al. Barry county, L. H. Bailey. 



Infrequent. 



* 95. S. OFFICINALE, Scop. Hedge Mustard. Th. 

 Road-sides and wet places. Frequent. 



45. BRASSICA, Tourn. MUSTARD. 



* 96. B. SINAPISTRUM, Boiss. English Charlock. Th. 

 A bad weed, becoming too frequent. 



*97. B. ALBA, Boiss. White Mustard. C. & S. 



Infrequent. 



*98. B. NIGRA, Koch. Black Mustard. C. & S. 



Common. 



99. B. CAMPESTRIS, L. Turnip. 

 Keweenaw Co., F. 



46. CAPSELLA, Medic. SHEPHERD'S PURSE. 



*100. C. BURSA-PASTORIS, Moench. Th. 



The commonest of weeds. 



47. THL.ASPI, Tourn. PENNYCRESS. 



* 101. T. ARVENSE, L. Field Pennycress or Mithridate Mustard. 

 Ann Arbor, Allmendinger Cat. ; " Shores of Lake Huron," Gray ; Bare. 



48. LEPIDIUM, Tourn. PEPPERWORT. PEPPERGRASS. 

 *102. L,. Virgiiiicum, L. Wild Peppergrass. Th. 



103. L. intermedium, Gray. 

 Keweenaw Co., F. 



104. L. CAMPESTRE, R. Br. S. B. 

 Macomb Co., and Detroit. Infrequent. 



49. CAKILE, Tourn. SEA-ROCKET. 



. 105. C. Americana, Nutt. American Sea- Rocket. Th. 



Shores of the great lakes. Common. 



