INDEX 



199 



head, 113 



inflorescence, 112, 113 

 irregular, 116 

 length of day, 112 

 lodicule, 118 

 micropyle, 117 

 nectar glands, 116 

 ovary, 113-115, 116, 117, 120 

 ovule, 114, 115, 117, 119, 120 

 pappus, 118 

 panicle, 114 

 pedicel, 113 

 peduncle, 112 

 petal, 113-115, 116 

 petunia, 114 



pistil, 4, 113-115, 116, 117 

 polar bodies, 119 

 pollen, 116-119 

 pollen tube, 117-119 

 pollination, 116, 118 

 cross, 119 

 self, 119 

 raceme, 113 



ray, 113 



receptacle, 115, 116 



rose, 115 



sepal, 114, 115 



sperm, 117 



spikelet, 118 



stamen, 114, 116 



standard, 117 



stigma, 114, 115, 116-119 



style, 114, 115, 116-119 



sunflower, 117, 118 



sweet pea, 116, 117 



types, 117, 118 



umbel, 113 



whorls, 114, 115, 115 



zinnia, 113, 114, 116, 118 

 Food making, 79-86 

 Food storage in roots, 37 

 Fruit, 7 



corn, 7 



iris, 9 

 Fungi, 51, 68, 97-102 



Genes, 26-28, 132-135, 137, 142, 143 

 Genetics, 138 



Genotype, 135 

 Germ tubes, 99 

 Germination 



conditions, 15, 19 



delayed, 8 



enzymes, 17 



oxygen, 17 



process, 17 



temperature, 16 



time, 20 

 Gladiolus, 113 

 Glumes, 118 



Grafting, 68-70, 70, 137, PI. IV 

 Grass, 7, 159 

 Grass flowers, 118 

 Gravitational water, 48, 49 

 Growth, 18, 19, 84, 85, 181-187 



cycle, 186, 187 



rate of, 183, PI. Ill, XV 



regulators, 151-157, 190 

 Guard cells, 72 



H 

 Hardening, 176, 184, 192 

 Haustoria, 100 

 Heredity, 141-157 

 Hibiscus, 113 

 Hilum, 8 



Homologous chromosomes, 132-134, 143 

 Homologues, 132-134 

 Hormones, 151-157, 161, 182, 183, 190, PI. 



X 

 Humus, 158, 160, 161, 179 

 Hybridizing, 122-140 

 Hybrids, 139 

 Hydrogen ion, 109 

 Hydroponics, 172, PI. XIV 

 Hygroscopic water, 49 

 Hypocotyl, 14 



Inflorescence, 112 



corymb, 113 



head, 113 



panicle, 114 



raceme, 113 



umbel, 113 

 Inheritance, 122-150 

 Insecticides, 101, 102 



