8 ' ILLUSTRATIONS. 



Page. 

 Fig. 14. May-apple {Podophyllum peltatum) , upper portion of plant with flower, 



and rootstock 39 



15. Bloodroot (.Sanp-itinana canade?ms), flowering plant with rootstock. .. 41 



16. Wild indigo ( Baptisia tinctoria ) , branch showing flowers and seed pods . 43 



17. Crane's-bill {Geranium maculatum) , flowering plant, showing also seed 



pod^ and rootstock 45 



18. Seneca snakeroot {Polygala senega), flowering plant with root 46 



19. Stillingia {Stilliiu/ia si/lratica), upper portion of plant and part of 



spike showing male flowers 47 



20. Yellow jasmine ( Gelsemium sempervirens) 52 



21. American Colombo {Frasera carolinensi^) , leaves, flowers, and seed 



pods 54 



22. Black Indian hemp {Apocynum cannabinum) , flowering portion, pods, 



and rootstock 55 



23. Culver's- root ( T 'eron (ca riVgrm/ca), flowering top and rootstock 59 



24.. Dandelion ( Tarnxacum officinale) 61 



25. Burdock {Arctium lappa ) , flowering branch and root 64 



107 



