INDEX 



455 



Lady's-slipper, pollination of, 271, 

 272 



Lagenaria vulgaris, 10 



Lamb's quarters, 330 



Larkspur, 339 



Late blight of potato, 380 



Layering, 172, 173 



Leaf mosaic, 239 



Leaf, of lily, 139; primary, of fern, 

 106 



Leaves, 5, 228-257; night position 

 of, 140, 252; of bean, 139, 140, 

 153; of cucumber, 5 ; of fern, 

 97, 98, 100, 101, 102, 107; of 

 Indian corn, 156, 157 ; of moss, 86, 

 87; of pine, 114, 119, 120, 123, 

 130; secondary, i, 4, 5, 150, 153; 

 seed, 1-3, 127, 130, 150, 152, 163, 

 234 



Lenticels, 214, 215 



Lettuce, prickly, 240 



Light, influence of, on growth, 185, 

 193, 195, 240 



Lilac, buds, 216, 217 



Lillum canadense, 239 



Lily, bulb, 201 ; family, 298 ; flower, 

 261; fruit, 288; leaf, 139; ovary, 

 263 ; wild yellow, 239 



Lime-sulphur wash, 382 



Liverworts, 95 



Living matter, 44 



Lockjaw, 26 



Loco weeds, 339 



Lumber, 356 



Lumbering, 354 



Lycopodium, no 



Macrospore leaves, 123, 124, 128, 144 

 Macrospore sacs, 124, 126, 144 

 Macrospores, 123, 124, 145, 146; 



germination of, 124 

 Maidenhair tree, 136 

 Male plant, of bean, 144, 149; of 



pine, 125127 

 Mallow family, 307 



Mallows, rust, 72 



Mandrake, 198 



Mangroves, 175, 176 



Marchantia, 95 



Marsilea, 109 



May-apple, 198 



Medicines, 324 



Medullary rays, 117, 212 



Melons, 10 



Mendelian laws, 371 



Micropyle, i, 123, 126, 127, 144, 150, 

 160 



Microspore leaves, 122, 123, 143 



Microspore sacs, 122, 123, 144 



Microspores, 123, 125, 144; germina- 

 tion of, 125, 144 



Mildew, downy, 379; powdery, 382 



Milkweed, 292 



Milky juices, 212 



Millet, 313 



Mint family, 309 



Mistletoe, 180 



Mold, bread, 53-59, 94 



Molds, 53 ; black, 59 



Monocotyledons, 167, 312; com- 

 parison with dicotyledons, 168; 

 families of, 296-301 



Monotropa, 182 



Mosaic, leaf, 239 



Moss, comparison with pine, 130-132 



Mosses, 86-96 



Movements of leaves, 250-252 



Mucor, 59 



Multiplication, vegetative, 171, 172, 

 iQ7, 37 



Mushrooms, 74-85 



Mustard family, 304 



Mutations, 367-369 



Mycorhizas, 181 



Narcotics, 319 



Nectar, 144, 147, 270 



Nereocystis, 51 



Nettle family, 301 



Nightshade, black, 338 ; family, 309 



