Index 



47* 



Frost weeds, 211 



Fructose, 27; 108 



Fruit Jellies, 115 



Fruits, turn to light, 235; from light, 

 228, 235; protection of, 276; 378; func- 

 tion, 391; vs. seed, 391 



Fruit sugar, chemistry, 27, 107 



Fungi, described, 450 



Galls, 370 



Gases, absorption, 190 



Gelatine, 115 



Genealogical, trees, 448, 449 ; groups, 463 



Generalizations, 7 



Generalized drawings, nature, 9 



Generalized knowledge, 9 



Genotypes, 298, 423 



Geographical distribution, 404 



Geotropism, 245; of stems, 246; of roots, 



228, 245; of leaves, 248; of flowers, 248; 



of fruits, 250; transverse, 246, 250; 



lateral, 250; correlation of, 373 

 Germination, 358 

 Germ cells, 415, 421 

 Germ plasm, 415 

 Gibson, 315 

 Globulins, 127 

 Glucosides, 119, 274 

 Glutelins, 127 

 Gradations, 404 

 Grafting, 293, 349; effects scion on stock, 



350; 437 



Graft hybrids, 351 

 Grand period of growth, 337 

 Grape sugar, 27; 107 

 Graphs; of transpiration, 203; of growth, 



330, 337 



Grappling Plant, 395, 396 

 Gravitation, and plants, 247; as stimulus, 



358, 359; in dissemination, 387 

 Gray, Asa, 6, 12, 71, 315 

 Grayness of vegetation, 263 

 Green AlgEe, 446, 454 

 Green color in plants, 17 

 Green-manuring, 124 

 Green Roses, 376 

 Grew, Nehemiah, 158, 220 

 Growth, 145; 327; operations, 327; de- 



velopment, 327, 340; enlargement, 327, 

 328; maturation, 327, 345; measure-: 

 ment, 328; graphs of, 330, 331, 337; 

 and temperature, 332, 333; and light, 

 334, 335; and transpiration, 335; and 

 humidity, 336; and electricity, 336; 

 and poisons, 336; and ether, 336; and 

 barometric pressure, 336; of leaves, 

 roots, stems, 338, 339, 340 ; shortening, 

 338; minor phenomena, 345; move- 

 ments, 346; cell division, 341; water 

 in, 343; and osmotic pressure, 342; 

 structural phenomena, 352; cycles, 

 352; egg-cell to embryo, 353; germina:- 

 tion, 358; seedling, 359; to adult, 361:; 

 embryonic vs. permanent tissue, 362- 

 secondary growth, 362; system, 363; 

 and age, 366; seasonal cycles, 367; 

 disturbance, 369; monstrous, 373; dis- 

 semination by, 381 



Guard cells, action, 207, 208 



Gum arabic, 114 



Gums, chemistry, 114 



Guttation, 210 



Gymnosperms, 460, 461 



Habenaria, fertilization, 312, 313 



Hairs, 389 



Hales, Stephen, 5, 223 



Halophytes, 464 



Heat, from respiration, 90; protection 



against, 265 

 Heliotropism, 227 



Hemispherical shape, explained, 50, 51 

 Herbaria, 2 

 Heredity, 408 

 Hildebrand, 401 

 Hooke, Robert, 158 

 Hooks on seeds, and fruits, 70, 395, 396 

 Horsetails, 457 

 Horticulture, 3 

 Hot springs, plants in, 265 

 House plants, how determined, 201 

 Humidity and growth, 326 

 Humus, 122 

 Huxley, 12, 141, 412 

 Hybridization, nature, 437, 439; practice, 



441 



