

THE FLORA OF IOWA. 



7 



CRUCIFERjE. 



Ml TSTAKD FAMILY. 





Nasturtium 



Water-Cress. 





52. sinuatum, Nutt. 



53. obtusum, Nutt.* 



54. palustre, DC. 



55. var. hispidum, Gray.* 



52. Water-Cress. 



53- 



54. Marsh-Cress. 



55- 





Dentaria 



Tooth wort. Pepper-root. 





56. diphylla, L. 



57. laciniata, Muhl. 



56. Pepper-root. 



57- 





Cardamlne 



Bitter Cress. 





58. rhomboidea, DC. 



59. var. purpurea, Torr. 



60. hirsuta, L. 



58. Spring Cress. 



59. Purple Spring C. 



60. Small Bitter C. 





Arab is 



Rock Cress. 





61. lyrata, L. 



62. dentata, T. & Or. 



63. laevigata, DC. 



64. Canadensis, L. 



65. hesperidoides, Gray. 



66. Drummondii, Gray. 



61. Rock Cress. 



62. " 

 63. 



64. Sickle-pod. 



65. Rock Cress. 



66. Tower Mustard. 





Erysimum 



Treacle Mustard. 





67. cheiranthoides, L. 



68. asperum, DC, var. pitmi- 

 lum (?), Watson. 



67. Worm-seed Mustard. 



68. Western Wall-flower. 





Sisymbrium 



Hedge Mustard. 





69. officinale, Scop. 



70. canescens, Nutt. 



69. Hedge Mustard. 



70. Tansy M. 





Brassi«>a 



Mustard. 





71. Sinapistrtim, Boissier. 



72. alba, Boissier. 



73. nigra, Boissier. 



71. Charlock. 



72. White Mustard. 



73. Black M. 





Draba 



Whitlow Grass. 





74. cuneifolia, Nutt. 



75. Caroliniana, Walt. 



76. var. micrantha, Gray. 



74. Whitlow-Grass. 



75- 

 76. 





Alyssum 



Alyssum. 





77. calycinum, L. 



77. Alyssum. 





Camelina 



False Flax. 





78. sativa, Crantz. 



78. False Flax. 





Capsella 



Shepherd's Purse. 





79. Bnrsa-pastoris, Mcench. 



79. Shepherd's Purse. 



, 



Lcpidium 



Pepperwort. Peppergrass. 





80. Virginicum, L. 



81. intermedium, Gray. 



80. Wild Peppergrass. 



81. " 





CAPPAKIDACE/K, 



CAPER FAMILY. 





Polanisia 



Polanisia. 





82. graveolens, Raf. 



82. Polanisia. 





Cleome 



Cleome. 





83. integrifolia, T & Gr. 



83. Cleome. 





*Davenport. 









