INDEX 



499 



Hypocotyl, 125, 126, 398, 428 

 Hypocreales, 238 

 Hypogynous, 386 

 Hypoxylon, 239, 240 

 Hysteriographium, 241 



Immunity, 164, 245 

 Indian-pipe, 69, 472 

 Individuality of the plant, 7 

 Indusium, 324, 325, 328, 329 

 Inflorescence, 381, 382 

 Insectivorous plants, 296, 480 

 Insects, crossing by, 115, 388, 412, 

 413, 417, 419, 421, 424, 439, 



445. 453. 471. 476, 479 



sight and sense of smell, 417 



Integument, 117, 118, 356, 361, 398, 



425, 428 

 Intercellular spaces, 9, II, 21, 25, 32, 



273 

 Involucre, 285, 287, 466, 483 

 Ipomoea, 475 

 Iris, 419 



family, 419 

 Ironweed, 491 

 Iron bacteria, 161 

 Irritability, 33, 61, 104 

 Isogamous, 178 

 Isthmus, 189, 190 



Jacket-cells, 356, 357 

 Jack-in-the-pulpit, 411 

 Jeffrey, 317 

 Judas tree, 451 

 Juglandales, 433 

 Juglans, 435 

 Juncus, 416 

 Jungermaniales, 288 

 Juniperus, 376, 377 

 rust, 256, 257 



Keel, 451-453 

 Kelps, 205 

 Kerner, 70 

 Key fruit, 398, 459 

 Klebs, 185 

 Knot, 100 



black, 239, 240 



Labellum, 421, 422, 423, 424, 425 



Labiatae, 476 



Lactuca, 33, 34 



Laminaria, 205 



Larix, 375 



Larkspur, 441 



Lateral roots, 59, 62, 63 



Latex, 435, 443 



Lathyrus, 453 



Leaf, arrangement of, 27-36 



color, 32 



compound, 30, 31 



fall of, 42, 43 



forms of, 7, 30, 31 



growth of, 33 



lobing of, 30, 31 



movementj 33-36 



reduction of, 43, 44 



size of, 24, 25 



structure of, 7-1 1, 21, 36-42 



work of, 1 1-26 

 Leaf -scar, 43 

 Legume, 65, 398 

 Lenticel, 71, 76, 87, 88 

 Leotia, 232 

 Lepidium, 124, 389, 395, 396, 398, 



428 

 Lespedeza, 35 

 Lessonia, 205 

 Leucoplasts, 2, 19 

 Lichens, 232 



Asco-, 232, 233 

 Licmophora, 168 

 Light, 4, 13-14, 17, 31, 36, 41, 63, 



104, 106, 112, 176 

 Ligulate flowers, 487 

 Lilac leaf, 9 

 Liliales, 414 

 Lily, fawn, 383, 414 



of the Valley family, 418 



family, 418 

 Lily order, 414 

 Linaria, 478, 479 

 Linin, 56, 57 

 Linkage of factors, 143 

 Linnaea, 482 

 Live-forever, 448-489 

 Liverworts, 271 



