298 



Index. 



Plants, abnormal development 

 of due to Insufficient light, 

 147; affected by unfavorable 

 environment, 118; difference 

 in water requirements of, 139; 

 distance apart for growing, 

 83; domestic, defined, 11; 

 have improved under culture, 

 270; heeling-in, 241; Injured 

 by excessive water, 139; af- 

 fected by parasites, 159; only 

 can prepare food from min- 

 eral substances. 43; packing 

 for transportation, 239; pot- 

 ted, require drainage, 70; 

 potting and shifting, 247; 

 power of, to endure cold, 122; 

 preparation of, for replant- 

 ing, 242; rapid-growing, re- 

 quire much water, 138; shad- 

 ing after transplanting, 146; 

 those who improve, are true 

 benefactors, 279. 



Plants under glass liable to 

 suffer from deficient light, 

 148; need of rest of, 113; 

 not to be sprinkled in bright 

 sunshine, 119; plants, unpack- 

 ing, 241; variability of, 271; 

 washing the roots of pud- 

 dled, 242; watering of potted, 

 70, 138; watering the roots of 

 recently transplanted, 250; 

 screens for shading, 145, 146. 



Plum, black knot of, 180, 266. 



Plum curculio, 176, 177. 



Plumule, 41. 



Poisons, destroying insects by. 

 163. 



Pollen, 97; appearance of ma- 

 ture, 276; applying, 277; to 

 prevent access of undesired, 

 276. 



Pole shears, 268. 



Pollination, 101; in many plants 

 dependent on wind, 151; 

 planting with reference to, 

 103; to prevent self, 276; 

 when should it be performed, 

 277. 



Potash, caustic, 168. 



Potassium, 157; assists in food 

 preparation, 45; -sulfid solu- 

 tion, 184. 



Potato, beetle, 163, 165; blight 

 of, 184; foliage of, injured by 

 sun heat, 121. 



Potato plant, illustrated, 79. 



Potatoes, knobby, 141. 



Potted plants require drainage, 

 70; watering of, 70, 138, 139. 



Potting, and shifting, 247; soil 

 248. 



Powdery mildews, 185. 



Preparation of plants for re- 

 planting, 242. 



Prepared food, current of, 62. 



Pricking off seedlings, 76. 



Principle of selection, 17, 270. 



Propagating bed, the, 207. 



Propagation by cuttings, 200; 

 by detached parts, 196; by 

 division, 181, 190; by di- 

 vision of the crown, 196; 

 by grafting, 219; by layers, 

 195; by parts intact. 192; by 

 sections of the plant, 199; by 

 seeds, 190; by specialized 

 buds, 196; by stolons, 194; by 

 suckers, 193; methods of, 190. 



Prosenchyma, 51. 



Protective pruning, 266. 



Protoplasm, active state of, 15; 

 dormant state of, 15; some 

 properties of, 15. 



Proximal defined, 80. 



Pruning, defined, 252; for den- 

 sity, 259; for flowers or fruit. 

 263; for growth, 263; for pic - 

 turesqueness, 258; for slen- 

 derness, 258; for stockiness, 

 258; for strength, 260; for 

 symmetry, 256; formative, 

 256; implements, 267; insuf- 

 ficient, prevents formation of 

 fruit buds, 149; -knife, 267; 

 maturative, 266; objects of, 

 256; protective, 266; -saw, 

 267; season for. 254; -shears, 

 267; stimulative, 262; where 



