INDEX AND GLOSSARY 



427 



Polyhedral, 233. 



Polypetalous: corolla of separate parts 



or petals, (251). 

 Polvpode. 173, 285, Fifis. 306, 307. 

 Polypodium, 291. 

 Polyporus, F!g. 121. 

 Polysepalous: caly.x of .separate parts or 



sepals, (251). 

 Polytrichum commune, ISO, Figs. 33S- 



340. 

 Pome: fruit of apple, pear, etc , (29S'>. 

 Pond-lily, 329. 

 Poplar bud, 36; cuttings, 27; dirrrioiis, 



133; inflorescence, 117; phyllotaxy, 49 



shape, 60, Fig. 97; seeds, 161. 

 Poppy, 330; opium, 246, 330. 

 Purtulaca, 339; fruit, Fig. 254. 

 Portulacacea>, 339. 

 Pot marigold, 406. 

 Potassium, 72; hydroxide, 241. 

 Potato, 16, 35, 153, 378, Figs. 24, 42, 



219; and osmosis, 68; cuttings, 24; 



flower, 137, Fig 219: inchi.sions, 249; 



onion. 33, Figs. 45, 46; sprouts, 31. 76, 



85, Fig. 42; starch, 31, 35, 248, 249, 



Fig. 42; sweet, 16, 380. 

 Potato-tomato graft, 28. 

 Potentilla, 354. 

 Prickles, 105. 

 Prickly ash, 105, Fig. 157. 

 Primrose, 390; fruit. Fig. 249. 

 Primula Sinensis, 270, 390. 

 Primulacea?, 390. 

 Prince's feather, 319. 

 Privet, 389. 

 Propagation by buds, 22; leaves, 22; 



roots, 20. 

 Prophase, 239. 

 Prosenchyma, 255. 

 Prostrate plants, 204. 

 Protein, 249. 

 Proterandrous: anthers maturing first, 



(265). 

 Proterogvnous: pistils maturing first, 



(265). 

 Prothallus, 173, Fig. 312. 

 Protococcus, 233, 234. 

 Protonema, 191. 

 Protoplasm, 80, 233. 

 Prunus, 356, Figs. 476-480. 

 Pseud-annual: perennial by means of 



tubers, bulbs, etc., (13). 

 Pteridophyte, 176. 

 Pteris, 291. 

 Pteris aquilina, 173, 237, 291, Figs. 125, 



308. 

 Puccinia graminis, 183, Figs. 325- 



330, 

 Pulse family, 347. 



Pumpkins and corn, 213, Fig. 358; flower, 



137; collenchyma, 254; fiuit, 155; 



hairs, 270; roots, 268. 

 Purslane, 339. 

 Pusley, 339 



Pussies of willow, 117, Fig. 213. 

 Pyrus, 359. 

 Pyxis: pod opening around the top, 



(292), Fig. 254. 

 Quack-grass, 19, 20. 

 Quercus, 311, Figs. 441-447. 

 Quillwort, 193. 

 Quince, 360; fruit, 155. 

 Quince-pear graft, 28. 

 Raceme: simple elongated indeterminate 



cluster with stalked flowers, (237), 



Fig. 173. 

 Radial, 261; bundles, 267. 

 Radish, 336; and light, 42, Fig. 70; fruit, 



152; root, 7, 13, 17, 64, Figs. 11, 



103. 

 Ragweed, 222, 225, 405, Fig. 497; great, 



405. 

 Ranunculacesp, 323. 

 Ranunculus, 325. 

 Raphanus, 336. 

 Raphides, 250. 

 Raspberry, 20, 21, 161, 358, Fig 263; 



fruit, 153; leaf. Fig. 128. 

 Rattlesnake plantain, 309. 

 Ray; outer modified florets of some com- 

 posites, (282). 

 Reagents, 241. 



Receptacle, 123; of liverwort, 187. 

 Redbud, 349. 

 Regular flower: the parts in each series 



alike, (258). 

 Reinforced fruit: other parts grown to 



the pericarp, 153, (286). 

 Reniform, 94. 

 Resins, 246. 

 Respiration: taking in O, giving off 



CO2, (172, 173); in seeds, 165. 

 Resting-spore, 179. 

 Rheumatism root, 328. 

 Rheum Rhaponticum, 317, Figs, 78, 



79. 

 Rhizome: undergroimd stem; rootstock, 



(44), 19, starch in, 31. 

 Rhododendron anther, 129. 

 Rhubarb, 3, 36, 45. 317, Figs. 78, 79. 

 Ribes, 363; Figs. 481-483. 

 Rice starch, 249. 



Richardia Africana, 296, Fig. 427. 

 Ricinus, 320. 

 Rind, 2.59. 



Rings of annual growth, 107, 263. 

 Robinia, 348, 349; spines, 105. 

 Rock cress, 334. 



