INDMX 



485 



{Nv/nibers refer to pages.) 



Ovule, 311. 



Oxalls, 240; dehiscence, 268; move- 

 ment in, 402, 403, 406. 

 Oxalises, 222. 

 Ox-eye daisy, 177. 

 Oxygen, 423. 

 Oysters on trees, 374. 



PsBony, fruit, 276. 



Painted-cup, 156. 



Palmate, 87. 



Palmer, book by, 350. 



Palmetto, 42; vernation, 59. 



Palms, classification, 327; leaf-scars, 



42; phyllotaxy, 68. 

 Panicum capillare, 337. 

 Pans for seeds, 330. 

 Pansy, 210, 222. 

 Paper model of leaves, 121, 

 Papilionaceous, 207. 

 Pappus, 174. 

 Parasite, 351, 406. 

 Parietal placenta, 143. 

 Paris daisy, leaves of, 129. 

 Parsley tribe, 190. 

 Parsnip, duration of, 387; inflores" 



eence, 190; tubers, 364. 

 Passion-flower, 209, 217, 295. 

 Partridge-berry, 240. 

 Pea, climbing, 402; family, 208, 269; 



flower, 207; fruit, 261, 268; germi- 

 nation, 323, 328 ; leaf, 97. 

 Pea, sweet, flower, 207, 240. 

 Peach, fruit, 256, 257, 277; phenology 



417; plum on, 379; seed of, 33.5; 



stature, 389; twigs, 32 et seq., 49; 



vernation, 58. 

 Peanut, fruit, 269. 

 Pear, bud on pedicel, 199; fruit, 256, 



293; leaf-scales, 54; on quince, 379; 



phenology, 417; spur, 28; twigs, 43. 

 Pecan, seed of, 335. 



Peck, writings of, 350. 



Pedagogics, 445. 



Pedicel, 162. 



Peduncle, 162. 



Peltate, 114. 



Pentamerous, 214. 



Pepino, seedless, 376. 



Pepo, 298. 



Pepper, flower, 188; fruit, 276. 



Peppermint, rhizome, 362. 



Pepper, red, duration of, 386 



Peppers, cotyledons, 336. 



Perennial, 386. 



Perfoliate leaf. 111. 



Perianth, 134; forms of, 183. 



Pericarp, 252. 



Perigynium, 232. 



Perigynous, 152. 



Peristome, 347. 



Petal, 134. 



Petiole, 80; as tendril, 400. 



Petiolule, 85; as tendril, 400. 



Petunia, double, 206; fruit, 275. 



Phalsenopsis, 226. 



Phanerogams, 346, 352. 



Phenology, 415. 



Philadelphus, 417. 



Phlox, dichogamy in, 235; fruit, 265. 



Phosphorus, 422. 



Phyllodium, 106. 



Phylogeny, 341. 



Phyllotaxy, 68; of flower, 197. 



Physalis, fruit, 279. 



Physiognomy, 411. 



Phytou, 380. 



Pickerel-weed, 240. 



Pie, cherry, 19. 

 Pie-plant, leaf, 112. 

 Pigweed, dissemination, 337; fruit, 

 262; associates of, 411; classifica- 

 tion, 326; leaf-sears, 42. 



Pileus, 347. 



