50. 
EDT. 
58. 
BULLETIN UNITED STATES GEOLOGICAL SURVEY. 
FUMARIACEA. 
. Corydalis giauca, Pursh. 
. Corydalis aurea, Willd. 
CRUCIFERZA. 
. Nasturtium palustre, D. C. 
. Nasturtium tanacetifolium, Hook. 
. Arabis hirsuta, Scop. 
. Arabis lyrata, L. 
1874. August. Base of Rocky Mountains. In fruit. 
1873. July. 
1874. July. 
1874. July. 
. Arabis perfoliata, Lam. 
. Hrysimum cheiranthoides, L. 
Pembina. 
Missouri Coteau to Milk River. 
. Hrysimum asperum, DC. 
Frenchman’s Creek. In fruit. 
. Hrysimum asperum, DC., var. pumilum. 
1874. August. Near Milk River. With long pods, 4’. 
1873. July. 
. Hrysimum lanceolatum, R. Br. 
. Sisymbrium brachycarpum, Hook. 
. Sisymbrium canescens, Nutt. 
Between Pembina and Mouse River, ou open 
prairie. A very canescent form. 
. Stanleya pinnatifida, Nutt. 
1874. July. Frenchman’s Creek. 
. Cameina sativa, 
. Capsella Bursa-pastoris, Moench. 
. Thlaspi arvense, L. 
. Raphanus sativus, L. 
1873. July. 
. Sinapis arvensis, 
. Vesicaria didymocarpa, Hook. 
. Vesicaria Ludoviciana, DC. 
Crantz. 
Pembina. 
L. 
CAPPARIDACE ZA. 
Cleome integrifolia, T. & G. 
1873. August. Mouse River. 
1874. August. Milk River. 
A very showy plant on dry sub-saline soil. 
. Polanisia graveolens, Raf. 
VIOLACEA. 
Viola Canadensis, L. 
Viola delphinifolia, Nutt. 
1873. July. 
Plains around Pembina. 
