574 



INDEX 



Corn, 17, 16*, 17*, 18*, 19*; of 

 Crowfoot family, 481, 481*; of 

 Elm family, 478, 477*, 478*; 

 epigynous, 15, 15*; function, 10; 

 gamopetalous, 13, 12*; of Goose- 

 foot family, 480, 480*; of Grass, 

 17; hypogynous, 16, 15*; incom- 

 plete, 13, 11*; of Mallow family, 

 14, 14*; of Mustard family, 482, 

 483*; of Oats, 20, 20*, 21*; odor, 

 10; of Orchids, 26, 25*; of Pars- 

 ley family, 488, 488*; parts, 11, 

 10*; of Pea family, 484, 485*; 

 perigynous, 16, 15*; of Pink 

 family, 480, 481*; pistillate, 14; 

 polypetalous, 13, 10*; of Rose 

 family, 483, 484*; size, 9; some 

 particular forms, 16; of Spurge 

 family, 486, 486*; staminate, 13; 

 unisexual, 13, 12*, 16*, 17*, 18*, 

 19*; of Walnut family, 474, 474*; 

 of Wheat, 22, 22*; of Willow 

 family, 473, 473*. 



Flowering glume, 18, 18*. 



Flowering plants, 6, 289; life cycle, 6, 

 7*, 469*. 



Fluctuating variations, 525. 



Foods, elaboration into plant struc- 

 tures, 95 ; manufacture by leaves, 

 252; nature of, 120; reserve, 277; 

 use, 273. 



Foot of sporophyte, 410, 410*. 



Forestry, 1, 4. 



Formation of buds, 208. 



Foxtail, seeds, 76*. 



Framework of plants, 275. 



Free-swimming societies, 505. 



Free water in the soil, 153. 



Fronds, 428, 427*. 



Fructose, 277. 



Fruits of Flowering plants, nature 

 and types, 77; aggregate, 80; 

 berry type, 77, 77*; blackberry 

 type, 79, 79*; definition, 81; 

 dissemination, 82-88; Pineapple 

 type, 80, 80*; pepo type, 79, 78*; 

 pome type, 78, 78*; multiple, 80; 

 some other types, 80, 81*, 82*; 



stone type, 77*, 78; strawberry 



type, 79, 79*. 

 Fruit sugar, 277. 

 Fucales, 321-324. 

 Fucoxanthin, 318. 

 Function, meaning, 6; of cells, 112; of 



flowers, 10; of leaves, 233, 252; 



of roots, 136, 137; of seeds, 55, 



56; of stems, 168. 

 Fungi, 289, 336; described, 351-404; 



Alga-like, 353-363; basidia, 382- 



403; divisions, 352; Imperfect, 



404; sac, 363-379. 

 Fungi Imperfecti, 352. 

 Funiculus, 38, 38*. 



Galium Aparine, 240*. 



Galton, Francis, 538. 



Gametes, 302; combinations and the 

 Mendelian ratio, 556; kinds, 302; 

 segregation and purity, 543. 



Gametophyte generation, 411; in 

 Angiosperms, 463, 464, 462*, 

 464*; in Cycads, 448, 450, 449*; 

 in Equisetum, 437, 438*; in 

 Ferns, 431, 432*, 433*; in Liver- 

 worts, 411, 412*; in Lycopodium, 

 440; in Moss, 417, 418*, 421*, 

 423*; in Pines, 455, 456, 455*; in 

 Selaginella, 442, 443*. 



Gamopetalous flowers, 13, 12*. 



Gamosepalous flowers, 13. 



Garden Pea, flower and pod, 35*; in- 

 heritance in, 540, 541, 542*. 



Gasteromyces, 384; described, 389. 



Geaster, 391, 391*. 



Gemmae, 409. 



Gemmae cups, 409, 407*. 



Genera, in classification, 291. 



Genes, 536; active and latent, 537. 



Genetics, 538. 



Genotype, 554. 



Geotropism, 150, 151*. 



Geranium, bending toward light, 

 243*. 



Germination of seeds, 89-98; effect 

 of temperature on rate, 90; 

 moisture requirement, 91; neces- 



