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Erigernn glohellum, (Nutt.) Fertile prairies, Devil's lake, (fcc. ; July 26. 

 !Solid<i<^o I'lflfnlin, (Linn.) Shady banks, Upper Mississippi ; September 11. 

 Solidalio erecta, var. siricta, (Torr. and Gr.) Prairie region between the 



Missouri and Mississippi ; September 14. 

 Solidago Buk/eUii, (Frank.) Boggy prairies, near St. Peter's river ; Sep- 



teml)er 14. 

 Solidngo nernoralis^ (Ail.) Fertile prairies, Devil's lake ; July 22. 

 iSolidago Missouriensis, (Nutt.) High prairies towards the sources of the 



St. Peter's; August 14. 

 Solidago Canadensis, {^ Torr. and Gr.) Throughout the more northern 



prairies of Upper Missouri ; July and August. 

 Solidago gigantea, var. Pitc/ieri, (Torr. and Gr.) August 22. 

 Solidago uimna. (Torr. and Gr.) Prairie region between the Missouri and 



Mississippi rivers, growing in tults ; July 7. 

 Bolionia glastifolia, (I'Her.) Devil's lake, and month of St. Peter's river ; 



August. 

 Guturrizia ciithami(c, (Torr. and Gr.) Arid soil, Upper Missouri, &.C. ; 



July 20. 

 Aplopui>pns spinrdosiis, {D. C.) High prairies, Upper Missouri to Upper 



Si. Peter's ; July 8. 

 Grinddia squarrosa, (Dunal.) Prairies, Jacques to Shayen-oju rivers, east 



to the Coteau des Prairies, Upper St. Peter's. 

 Chrysop>is vil/osa, (Nutt.) Sandy arid soil, Upper Missouri ; June 28. 

 Silphium ladnintum, (Lum.) Wet prairies, Lower St. Peter's river, Up- 

 per Des Moines river, etc. ; September 26. 

 Iva axillaris, (Pursh.) Arid hills. Upper Missouri; May 25. 

 Ambrosia corouopifoUa, (Torr. and Gr.) Saline margin of Devil's lake ; 



August 1. 

 Ambrosia trijida, (Linn.) Borders of woods, Devil's lake ; July 26. 

 Xauthinm ecldnatum, {? Torr. and Gr.) Banks of Spirit lake, and head- 

 waters of Little Sioux river; September 30 — ripe Jr. 

 Echinacea angu^tifolia, {(i Torr. and Gr.) Dry gravelly ridges of Upper 



Missouri ; June 28. 

 Budbeckia liirta, (Linn.) Moist ravines near Devil's lake ; August 3. 

 Leparhis cohnnnaiis, (Torr. and Gr.) and var. pidcherrime, (Torr. and Gr.) 

 Dry prairies about James (Jacques) river. Upper St. Peter's, &c. ; 

 July 6. 

 Helianlhus peliolaris, (Nutt ) Argillaceous hills, Upper Missouri ; June 4. 

 HeLatit/tus iirosse serrai us, {Maitens.) Moist prairies, St. Peter's river; 



September 8. 

 Helianthus le/ilicnlaris, (^ Torr. and Gr.) With H. petiolaris. 

 Helianthnspvrnilus, var. McoUeti, (Torr. and Gr.) Prairies, Devil's lake. 



August 1. 

 Heliantiins rigidus, (D. C.) With the preceding, and at Devil's lake. 



Helianthus , (perhaps a new species.) Borders of rivulets on St. 



Peter's river. 

 Coreopsis (Calliopsis) tinctoria, (Nutt.) Prairies about Jacques river; 



July 6. 

 Dysodia rjirysanthemoides, (Lag.) Marmot habitations near Fort Pierre ; 



rare on the Upper Missouri ; June 10. 

 Gaillardia uristaia, (Pur^h ) liij^htst arid prairie ridges between James 

 (Jacques) river and Devil's lake ; July 10. 



