Nineteenth Annual meeting. 



97 



Euphorbia heterophylla, 10. 

 Euphorbia hypercifolia, 203. 

 Euphorbia maculata, 10. 

 Euphorbia marginata, 10, 236. 

 Euphorbia petaloidea, 10, 203. 

 Euphorbia serpens, 10. 

 Evolvulus argenteus, 33. 

 Fragaria, 193. 



Fraxinus viridus, 71, 127, 165, 197. 

 Gaillardia pulchella, 4. 

 Galium, 110. 

 Galium aparine, 28. 

 Gaura parviflora, 102. 

 Gleditschia triacanthos, 158. 

 Glycyrrhiza lepidota, 15. 

 Graminese, 29, 261. 

 Grindelia squarrosa, 30, 191, 199. 

 Gymnocladus Canadensis, 92, 168. 

 Hackberry bark, 226. 

 Helianthus, 31. 



Helianthus doronicoides, 73, 217. 

 Helianthus giganteus, 73. 

 Helianthus lenticularis, 103. 

 Helianthus mollis, 104. 

 Helianthus rigidus, 73. 

 Hibiscus Trionum, 151. 

 Impatiens fulva, 74. 

 Ipomoea leptophylla, 208. 

 Ipomoea hederacea, 208. 

 Iris, 148. 



Isanthus cjerulea, 169. 

 Iva ciliata, 119. 

 Iva xanthiifolia, 119, 256. 

 Juglans nigra, 210. 

 Juniperus Virginiana, 47. 

 Lactuca Canadensis, 180, 264. 

 Lepidium Virginicum, 219. 

 Lespedeza capitata, 12, 249. 

 Lespedeza violacea, 12. 

 Lobelia cardinalis, 163. 

 Lythrum alatum, 106. 

 Malvastrum coccineum, 34. 

 Madura auriantica, 251. 

 Manure heap, 230. 

 Menispermum Canadense, 5. 

 Mentha Canadensis, 36. 

 Mentzelia ornata, 107, 129. 

 Monarda fistulosa, 36. 

 Morus rubra, 171. 

 Nasturtium Armoracia, 185, 207. 

 Oats, 1. 



(Enothera biennis, 70, 76, 108, 214. 

 7 



CEnothera Fremonti, 54. 



(Enothera serrulata, 76, 108. 



(Enothera sinuata, 76. 



Onosmodium Carolinianum, 60. 



Oxybaphus nyctagineus, 218. 



Panicum, 225. 



Panicum sanguinale, 3. 



Papaver, 147. 



Paper, 147, 244. 



Peach leaves, 232. 



Pentstemon cobasa, 174. 



Pentstemon grandiflorus, 174. 



Petalostemon candidus, 38, 77. 



Petalostemon multiflorus, 38, 77. 



Phaseolus diversifolius, 14, 130. 



Phaseolus pauciflorus, 14. 



Physalis, 6, 175. 



Physalis lanceolata. 



Phytolacca decandra, 164. 



Plantago major, 176, 213. 



Plantanus occidentalis, 90, 131, 140, 205, 



238, 265. 

 Plums, 223. 



Polygonatum giganteum, 126. 

 Polygonatum multiflorum, 68. 

 Polygonum amphibium, 20, 192. 

 Populus monilifera, 48, 143. 

 Portulaca oleracea, 209. 

 Potentilla, 186. 

 Potentilla Novegica, 220. 

 Prunus Americana, 39, 109, 233, 252. 

 Prunus serotina, 132. 

 Psoralea argophylla, 79, 250. 

 Psoralea floribunda, 13, 79, 250. 

 Puccinia, 91. 



Quercus macrocarpa, 55, 257. 

 Quercus prinoides, 55, 252. 

 Quercus tinctoria, 142. 

 Rabbit dung, 145. 

 Rhus glabra, 111, 179. 

 Rhus toxicodendron, 17. 

 Ribes aureum, 112. 

 Ribes rotundifolium, 72, 112. 

 Rosa Arkansana, 46, 51, 144, 224. 

 Rotten wood, 86, 87, 247. 

 Rubus occidentalis, 52. 

 Rubus villosus, 52, 113. 

 Ruellia ciliosa, 32, 160. 

 Rumex Britannica, 189. 

 Rye, 246. 



Sagittaria variabilis, 7. 

 Salix longifolia, 49. 



