Mr. Geyer's Plants of Illinois and Missouri. 95 



4. Isopyrum biternatum, Torr. & Gr. 



5. Delphinium tricorne, Michx. 



6. Trautvetteria palmata, Fisoh and Mey. ; an entirely new 

 locality for this rare plant, which has heretofore only been found 

 in the Alleghany and Rocky Mountains. 



7. Thalictrum anemonoides, Michx. 



8. Brasenia peltata, Pursh. 



9. Corydalis aurea, Willd. ; the smaller, glaucous variety of the 

 banks of the western rivers. 



14. Draba Carolmiana, Walt. 

 15., Lepidium Virginicum, Linn. 



16. Polygala purpurea, Nutt. 



17. Polygala incarnata, Linn. 



18. Polygala verticillata, Linn. 



19. Viola pedata, Linn. 



10. Cardamine Ludoviciana, 



Hook. 



11. Cardamine hirsuta, Linn. 



d. Virginica. 



12. Sisymbrium canescens, 



Nutt. 



13. Draba brachycarpa, Nutt.| 



20. Viola delphinifolia, Nutt. ; common in rich prairie soil in 

 Illinois and Missouri, where it does not take the place of V. pe- 

 data, as Nuttall intimates, but grows in the same region, though 

 never on such poor clayey or gravelly soil as V. pedata. 



21. Viola palmata, Linn., and 



22. Viola sororia, Willd, are certainly nothing but varieties of 

 V. cucullata, Ait. 



23. Viola sagittata, Ait. 



24. Viola striata, Ait. 



25. Parnassia Caroliniana, 



Michx. 



26. Hypericum sphaerocarpum, 



Michx. 



27. Hypericum Sarothra, 



Michx. 



28. Anychia capillacea, Nutt. ; well distinguished from A. di- 

 chotoma, Michx. by the smooth stem, the ovate or oblanceolate 

 obtuse leaves of the branches, the pedunculate flowers, 1-nerved 

 obtuse sepals, and twice as large seeds. 



serina, Campanula rotundifolia , Epilobium spicatum, Cornus Suscica, Phragmites 

 communis, Salicornia herbacea, Glaux maritima, most Equiseta, etc. 



4. Naturalized plants, spreading with the progress of civilization : of these we 

 have in the neighborhood of St. Louis, Taraxacum Dens-Leonis, Murrubium vul- 

 gare, Trifolium repens, Bromus sccalinus, Verbascum Thapsus and V. Blattaria, 

 (perhaps belonging to the third class,) JYepeta Cataria, Arctium minus, etc. Cicho- 

 rium Intybus, Ecliium vulgare, and others, I have not seen in the west. 



It is difficult to decide to which of these classes Datura Stramonium and Porlu- 

 lacca oleracea should be referred. Datura is perhaps introduced in Europe as well 

 as America, and possibly did not reach this country from Europe. Erigeron Cana- 

 dense and (Enothera biennis are now as widely naturalized in Europe, as Taraxa- 

 cum is in America. 



