INDEX 



591 



All numbers refer to pages, heavy type indicating illustrations. 



Hepatics, 511^ 



Herb, 330 



Herbaceous, 333 



Herbaceous Ferns, 535 



Herbage-vegetables, 35, 53 



Herbs, 306 



Heredity, 572 



Heterocyst, 474 



Hevea guyatiensis, Brazilian 



Rubber-tree 

 Hickory, 376, 414, 415; nut, 35, 



120, 125; shagbark, 41; splints, 



241; wood, 260 

 Higher dicots, 397, 401 

 Hip, 364 

 Hippocastanaceo', Horse-chestnut 



Family 

 Hockey-sticks, 245 

 Hollv, 212 

 Holly Family, 399: Christmas 



holly, 212 

 Holophyte, 495 

 Homologies, 326, 327 

 Homologous parts, 326 

 Homologues, 326, 327 

 Homology, 326 

 Honey, 303 

 Honeysuckle Family, 401: elder 



197 

 Hoops, 259 

 Hops, 156, 157, 170 

 Hordeum satirum, var. distichon, 



Barley, Two-rowed; var. hexas- 



tichon, Barley, Six-rowed; var. 



vulgare, Barley, Common 

 Hormogonia, 475, 510 

 Horned-liverwort, 517, 522, 523 



558 

 Horned-liverwort Familv: horned- 

 liverwort, 522, 523, 558 

 Horn substitute, 284 

 Horsechestnut Family, 399 

 Horseradish, 137, 141, 144, 177, 



362 

 Horticultural hybrids, 430 

 Hose, 284 

 Host, 211, 494 

 Hot springs containing algae, 



475 

 House-furnishing, 223 

 Hubbard Squash, 81 

 Hubs, 259, 263 



Human life contrasted with jilant 



life, 575 

 Human welfare dependent upon 



a knowledge of plants, 575 

 Humulus Lupulus, Hops 

 Husk, 11, 235 

 Hybrids, 430 

 Hydrocarbon, 284; oxidized, 285, 



287 

 Hydrogen, 570 

 Hymencea Courbaril, Courbaril- 



tree 

 Hymenium, 503 

 Hypha, 496 



Hypogenous floral organs, 350, 355 

 Hysterophyte, 495 



Ice age, 432 



Iceland Moss, 163, 165, 169, 395, 

 504, 505, 506, 507 



Ignorance not to be argued from, 



453 

 Ilex Aquifolmm, Christmas Holly 

 Illicium anisatum, Star Anise 

 Illuminating gas, 298, 301 

 Illuminants, 295, 297 

 Imbricate estivation, 349, 354 

 Imitation of feeding, 563; of \ital 



processes, 564 

 Immanence of God, 569 

 Imperfect flowers, 13, 347 

 Implements, 245, 259, 260, 263 

 Incandescent lamp filaments, 228 

 Indehiscent fruits, 351 

 Indeterminate inflorescence, 344, 



352 

 India ink, 294 

 Indian, corn (.see Maize); hemp, 



180, 181; poke, 199, 390, 424, 



425; tobacco, 201, 202, 384, 418, 



419 

 India-rubber, 283 

 India-rubber tree, 282 

 Indican, 292 



Indigestible seeds for dissemina- 

 tion, 560 

 Indigo, 290, 291, 562; blue, 292; 



white, 292 

 Indigofera tinctoria, Dver's Indigo 



Shrub 

 Indigo Shrub, Dyer's, 292, 293, 



366, 408, 409 



