INDEX 



629 



Fossombronia tuberifera, 217 



Fraxinus, 28 



Frittilaria imperialis, 44 



Fronds, 150 



Fruit, essentials of, 451 



Fucus, 352 



Function, 7 



Fungi, timber-destroying, 303 



Fungus-farms, 325 



Gaertneria, 48S 

 Galactase, 317 

 Gall-mite, 292 

 Gametes, 180 



theory of purit)- of, 355 

 Gametophyte, 181 



decline of, 365 

 Gamopetalje, 456 

 Gangrene, 316 

 Gasteria nigricans, 38 

 Gaussia, 134 

 Gaylussacia, 473 

 Gemma, 208, 216 



Generations, alternation of , 1S2. 575 

 Geography, plant, $ 

 Geological time, table of, 584 

 Geotropism, 128 

 Geranium, 339 



house, 139 

 Germination, 166 

 Germ-tube, 166 

 Ginkgo, 610 

 Gleditsia, 468 

 Gleichenia circinata, 157 

 Glumes, 495 

 Golden rod, 340 

 GoodseU, John W., 310 

 Gooseberries, 301 

 Grafting, 333 



various methods of, 334 

 Grain smut, 297 



Graminese, 492 



Grape, downy mildew of, 313 



Gravity, relation of roots and 



stems to, 126 

 Grew, Nehemiah, 14 

 Groups of plants, 366 



the great, 621 

 Growing points, 212 

 Growth, 113 



and nourishment, 123 



differential, 115 



intercalary, 218 



permanent and temporary, 121 

 Guard-cells, 33, 35 

 Gunnera manicata, 341 

 Gymnosperms, 408, 412 



ancestors of, 609 

 Gymnospermy, 408 

 G^Tioecium, 436 



H 



Hackberry, 292 



Haustoria, 402 



Head, 483 



Hedge mustard, igo 



Hellriegel, 318 



Henbane, 481 



Hepaticae, 209, 210 



Heracleum lanatum, 472 



Hercules dub, 27 



Heredity, 541 



experimental study of, 549 

 Johannsen's conception of, 560 

 vs. inheritance, 544 



Heterogamy, 352 



Heterospory, 356, 382 



Hickory, 336 



Hirase, 404 



Histology, 4 



Hooke, Robert, 14 



Horehound, 479 



Hornbeam, 75, 76, 336 



