270 



INDEX 



Page 



Leaves, Peltate 121, f. 123 



Pinnately netted-veined 119, f. 119 



Pinnatisect f. 122 



Radiate-veined f. 122 



Renif orm 121 



Repand 122 



Sagittate 121, f. 123 



Serrate 122 



Shield-shaped f. 123 



Spatulate 120. f. 123 



Trifoliate 120 



Truncate 121, f. 123 



Undulate f. 122 



Wedge-shaped f. 123 



Leek, Wild 72 



Leersia 



oryzoides 82, 145 



virginica 73 



Legislation 



Seed-control Law 43, 45-49 



In Canada 49 



Iowa 45-49 



Kentucky 49 



Maine 49 



Michigan 49 



New York 49 



North Dakota 49 



Washington 49 



Wisconsin 49 



Weed Law 43-44 



Legume 132 



LEGUMINOSAE . . .87, 136, 187-191 



Lemna 15 



Leonurus cardiaca 71, 219 



Lepachys pinnata 69 



Lepidium 



apetalum 28. 55, 72, 180, f. 181 



virginicum 33, 36, 55, 56, 180 



Impurity in alsike and blue 



grass f. 35 



Lepiota 64 



Lettuce 



Blue 71. 115 



Canadian 10, 13 



Prickly 10, 13, 24, 58, 59, 71, 



84, 96, 115, 253-254, f. 253 



Virosa 71 



Wild f. 126,254 



Licorice, Wild f. 20, 59, 71, 116 



Ligulate corolla 128 



LILIACEAE 135, 159-160 



Lily 



Family 159-160 



Stem 117 



Lily of the Valley 64, 124 



Lima Bean 64 



Lime, slaked, as herbicide 95, 98 



Linaria vulgaris 224, f. 224 



Linum usitatissimum 



Legislation 48 



Liquorice. See Licorice. 

 Lithospermum 



arvense 69, 2 16 



canescens 216-217 



hirtum 217 



Little Barley 155, f. 155 



Live-forever . . ,71 



Page 



Lizard's Tail 160 



LOBELIACEAE 137 



Loco Disease 189 



Loco Weed, Stemless 64, 71 



Locust 



Black 63 



Honey, Germination 42 



Lolium 



italicum 46, 47, 48 



perenne 36. 46, 47, 48, 78, 153 



temulentum 153 



Low 



Hop Clover 189 



Horseweed 233, f. 233 



Lychnis 



alba , 175 



Flos-cuculi 175 



Cithago 46 



Vitality 38 



vespertina 46 



Lycopus rubellus, Germination.. 42 

 Lygodesmia 



juncea 73, 254 



Rushlike 254 



Madder Family 227-228 



Madia californica 240-241 



Mallow 24, 201 



Germination ; . . . . 41 



False 200-201 



Family 5, 36, 87, 199-202 



Indian 36, 58, 78, 84, 87, f. 131, 



200, f. 200 

 Small. See Cheeses. 



MALVACEAE 136 



Malva rotundifolia 69, 201 



Vitality 38 



Malvaslrum coccineum 200-201 



Man as seed carrier 15-16 



Mandrake 64 



Manitoba Weeds 78, 79 



Manure, Seeds buried in 41-42 



Maple 14, 119, 129, 132, 199 



Curly 199 



Hard 199 



Sugar 199 



Maps ihowing distribution of 



weeds 77, 79, 82 



Marigold 



Fetid 62, 70, 115, 242-243 



Marsh 64 



Marre 95 



Marrubium vulgare 59, 71, 219 



Marsh 



Elder 51, 59, 62, 70, 83, 115, 



233, f. 234 



Small-flowered 233-234 



Foxtail 148 



Marigold T 64 



Muhlenberg 147 



Marshall, Humphrey 85 



Martynia proboscidea 74 



Maryland, Garden weeds of 59 



Matricaria, Chamomilla 69 



Mayweed 10. 11. 30. 243 



Maximilian's Sunflower 239 



