145 [ 237 ] 



CRUCIFER^. 



Nasturtium sinualnm, (Nult.) Missouri river, sand-bars; April 23— not 



in fruit. 

 Nustvriiurn palustre, (D. C.) Margin of swamps near Jacques river ; 



July 9. 

 Arahis Cana(/ensis, (Linn.) Shady woods, Upper Missouri ; April 29, 

 Arabis denlata^ (Torr. and Gr.) Shady ravine near Council Bluffs; 



April m 

 Arahis hcvigata, (D. C.) Woods opposite St, Louis; April 19. 

 Caidatnine Lndoviciana, (Hook.) Margni of swamps, St. Louis, &c. ; 



April 19. 

 Deritaria laciniata^ (Mnhl.) Rocky banks of the Missouri; April 4. 

 Sisymbrium cauescens, (NiUt.) St. Louis and Fort Pierre, Upper Mis- 

 souri ; April and June. 

 Erysimum as/jcrum, (D. C.) Hills, Upper Missouri and Devil's lake; 



June and July, 

 Erysimum cheiranihoides, (Linn.) Banks of rivers. Upper Mississippi; 



August. 

 Stanleya pitinatifida, (Nutt.) Siaty hills near L'Eau-qui court river; 



May 23. 

 Draba Caroli?iia?ia, (Walt.) St. Louis and Council Bluffs; April 30. 

 Draba brachycarpa, (Nutt.) Grassy hills about St. Louis; April 10. 

 Lepidltnn rtiderale^ (Linn.) For? Pierre, Missouri valley, June 9. 

 (Japsella Bursa-pastoris, (Moench.) Upper Missouri ; June 14. 



CaPPARIDACE.E. 



Cleome integrifolia, (Pursh.) Naked banks of rivers. Upper Missouri ; 

 July 9. 



Polanisia graveoletis^ (Raf.) Gravelly hills and sandy banks of the Up- 

 per Missouri ; June 19. 



POLYGALACE.E. 



Polygala Senega, (Linn.) Borders of ponds, Upper Missouri. 



Poiygala Vfrticillata, (Linn.) Prairies about Devil's lake ; August 1. 



Polygala alba ^ (Nutt.) — P. t>e?/richii,[ToTr. and Gr.) Roots thick, throw- 

 ing up numerous stems, which are to 8 iiiches high ; leaves scarcely 

 a line wide ; spike somewhat larger than those of poiygala verticil- 

 lata; lobes of the caruncle half as long as the hairy seed. Gravelly 

 banks of the Missouri, near the banks of L'Eau quicourl river; 

 May 23. A rare species, of which I for the first time saw specimens 

 in this collection. 



VIOLACE^. 



Viola delphini folia, (Nutt.) Prairies near Council Bluffs; May 5. 

 Viola Canadensis, (Linn.) Prairie groves, from near the mouth of Ver-- 



million river, Upper Missouri, north to Devil's lake; May 10. 

 Viola cncullaia, (Ait.) Prairies near Council Blufi's; May 15, 

 10 



