INDEX. 



505 



Ilicioides mucroBata 191 



Impatiens 213 



Imperata axundinacea 273 



exaltata 278 

 Ipomoea 236 



pes-caprae 236, 274 

 Iridales 353 



Iris 187, 193, 196, 221, 252, 270, 385, 389 

 Isachne 278 

 Isocoma 232, 233 

 Isoetes 190 



lacustris 380 

 Iva 196, 236 



imbricata 236, 237 



Jasione 265 



Juglana 108, 109, 351, 354, 363, 367 

 Juncus 195, 196, 198, 199, 203, 207, 232, 

 240, 245, 247, 250, 268, 269, 363, 

 365 



alpinus 221, 241 



artioulatus 207 



balticus 218, 221, 230, 241 



bufonius 238 



canadensis 213 



compressus 273 



dichotomus 205 



gerardi 201, 202, 249, 273 



glaucus 273 



lamprocarpus 243, 273 



maritimvis 249, 257, 273 



obtusiflorus 252 



roemerianus 186, 187 



squarroaus 250, 253, 259, 381 



toireyi 221 



trifidua 207 

 Jungermaunia 273 

 Jungermannites 361 



Juniperus 180, 196, 203, 205, 206, 207, 208, 

 209, 218, 344, 364, 379, 386 



communis 204, 207, 210, 243, 263, 384 



horizontalis 210 



oxyoedrua 274 



phoenicea 274 



aabina 204 



utahensis 234 



virginiana 211, 401, 402 

 Jussiaea repens 193 



Kalmia 24, 90, 185, 191, 203, 207, 225, 362, 

 363 



glauca 191 

 Knautia 163 

 Kochia 234, 235 



vestita 234 

 Koeleria 355 



cristata 219, 263 

 Kyllinga 278 



Laccopteris 413 

 Lactuca scaxiola 263 

 Laguncularia 230 



racemosa 237 

 Lagurus ovatus 273 

 Laminaria 196 

 Laricopsis 405 



Larix 24, 181, 187, 189, 191, 192, 193, 194, 

 196, 197, 199, 200, 201, 209, 226, 

 228, 362, 363, 365, 405 



laricina 24, 191, 193, 201, 203 



occidentalis 181, 226 

 Larrea 232 

 Lastrea 252 

 Lathyrua 201, 207 



maritrmua 23 



omatua 214 

 Laurua 366 

 Lecanora 225, 252 



calcarea 214 



cinerea 210 



privigna 214 



rubina 214 



rubina opaca 214 



tartarea 240 

 Lechea 206 

 Lecidea 252 



icmadophila 20 



muacorum 20 

 Ledum 18, 24, 90. 180, 191, 200, 201, 203, 

 207, 209, 240, 245 



groenlandicum 191 



latifolium 185 



palustre 11, 185, 265, 382 

 Leersia 188 



Lemna 24, 193, 196, 199, 221, 266, 267, 269, 

 361, 363 



minor 250 

 Leontodon 265 

 Lepaohya 188 

 Lepidium 65, 231 

 Lepidocarpon 418 

 Lepidodendrae 411 

 Lepidodendron 406, 418, 419, 421 

 Lepidostrobus 418 

 Leptilon 206, 212 

 Leptochloa 231 

 Lepturus 240 

 Lespedeza 206, 211 

 Lesquerella alpina 215 

 Leucanthemiuu 265 

 Liatris 188 



Bcariosa 218, 221 



spicata 221 

 Ligustnim 263 

 Liliales 353 



Limnanthemum 190, 396 

 Limnorchis hyperborea 191 

 Limonium carolinianum 190 

 Limoaella aquatica 238 

 Linnaea borealia 207, 247, 263, 383 

 Liuopteria 418 

 Linum 195, 221 



striatum 274 

 Lippia 186 



Liquidambar styraciflua 197 

 Liriodendron 212 



tulipifera 211 

 LittoreUa 250, 269 

 Lobelia dortmanna 190 

 Loiselemia 207, 245 



procumbena 21 

 Lolium 255 

 Lomatium 113, 116 



