630 



INDEX 



Homology, 28 

 Hooke, Robert, 14 

 Horehound, 479 

 Hornbeam, 76, 77, 336 

 Horsechestnut, 36, 120, 121 

 Horsetails, 359, 368 

 Hybridizing, artificial, 552 

 Hygiene, personal, 311 



public, 311 

 Hymenophyllum, 351 

 Hypanthium, 464 

 Hypocotyl, 381 

 Hypothecium, 331 



Ikeno, 404 



Imbibition, 58 



Incrustation, 578 



Indian pipe, 323, 339, 473, 476 



Indusium, 155 



Ingen-Housz, Jan, 73, 74 



Inheritance, alteration of, 566 

 and environment, 560 

 and reproduction, 544 

 versus expression, 188, 543 



heredity, 544 

 mechanism of, 565 

 what is, 542 



Innovation-branches, 348 



Internode, 118 



Involucre, 483 



Isogametes, 251 



Isogamy, 352 



Isospores, 380 



Iva, 488 



J 



Jack-in-the-pulpit, 51 

 Jeffrey, 426 

 Job's tears, 446 

 Johannsen, 561 

 Johnson-grass, 496 

 Juglans nigra, 308 



Jungermanniales, 210 

 K 



Kalmia latifolia, 474 

 Kingdom, organic, 8 

 Kingdom, divisions of plant, 366 

 Knight, Thomas Andrew, 128 

 Knight's experiment, 127 

 Knowlton, F. A., 595 

 Kohlrabi, 464 

 Kunze, 599 



Labiatae, 479 



Labium, 479 



Labor, division 01 physiological, 363 



Lagenostema Lomaxi, 596 



Lamarck, 506, 509 



Lamella, middle, 158 



Lang, ontogenetic hypothesis of, 



575 



Larch, 336 

 Latex, 476 

 Lathrsea, 324 

 Lathyrus latifolius, 466 

 Layering, 179 

 Leaf -base, 13 

 Leaf-blade, internal anatomy of, 



3i,34 

 types of, 30 



Leaf -fall, 101, 415 



Leaf -mosaic, 144 



Leaves, correlation among, 143 

 growth of, 119 

 lungs of plants, 103 

 relation of, to light, 138 

 spore-bearing, 154 

 stomach of plants, 103 



Leeuwenhoek, 98 



Legume, 318, 468 



Leguminoseae, 466 



