SUBJECT AND PLANT INDEX 



449 



Ornithogalum, 175, 248 

 Orobanche, 196, 200-202 

 Orobus, 291, 293 



Oryza, 31, 191, 256, 268, 351, 376 

 Ostrya, 77, 185 

 Osyris, 64 



Ottelia, 46, 159, 210, 422 

 Ouvirandra, 36 



Ovule, component parts of, archespo- 

 rium, 69 



aril, 56-57 



caruncle, 56 



epistase, 67 



hypostase, 65, 91 



integumentary tapetum, 63-65 



integuments, 55 



micropyle, 54, 58 



nucellus, 59 



obturator, 60, 185-187 

 form of, 54, 55 



occurrence of chlorophyll in, 58 

 vascular supply of, 67 

 Oxalis, 188 

 Oxybaphus, 191, 200, 210, 269 



Pachycereus, 362 

 Paeonia, 380 

 Pancratium, 155 

 Pandanus, 91, 93, 426 

 Pa-paver, 169 

 Paphiopedilum, 89, 190 

 Paradisia, 144, 369 

 Parkia, 38 



Parthenium, 191, 204, 323 

 Parthenocarpy, 398 

 Parthenogenesis, 21 



diploid, 313 



facultative, 316 



haploid, 205, 209, 313, 393 



induced, 391 

 Passerina, 187 

 Passiflora, 209 

 Pedicularis, 242 

 Peltandra, 231 

 Penaea, 110, 346, 426 

 Penaea type of embryo sac, 110 

 Pentas. 140 



Pentstemon, 139 



Peperomia, 106-110, 131, 189, 229, 416, 426 



Peperomia type of embryo sac, 106 



Pepper, 400 



Pereskia, 362, 363 



Periplasmodium, 35, 36 



Perisperm, 61, 256, 257 



Persimmon, 398 



Petasus, 67 



Petunia, 140, 189, 193, 201, 211, 260, 261, 



378, 381, 392, 399, 400 

 Phacellanthus , 42 

 Phajus, 87, 296 

 Phalaenopsis, 190, 297 

 Phaseolus, 141, 142, 203, 291, 293 

 Philadelphia, 142, 184 

 Phleum, 42, 351, 352 

 Phlomis, 165 

 Phoenix, 257, 259, 376 

 Pholidota, 48 

 Pholisma, 30, 361 

 Phoradendron , 39 

 Phryma, 141, 188, 189 

 Phyllis, 61, 62, 134, 135 

 Phyllocladus, 411 

 Phyllospadix, 46 

 Phytelephas, 255 

 Phytocrene, 56 

 Pilea, 187 

 Pineapple, 398 

 Pinus, 411, 412 

 Piper, 39, 118 

 Pistoria, 298 



Pisum, 203, 257, 291, 293, 294 

 Plasmodium, 42 

 Platanthera, 203, 314, 316 

 Plumbagella, 85, 120, 131, 132, 169, 188, 



346, 416, 421, 425 

 Plumbagella type of embryo sac, 120 

 Plumbago, 55, 85, 124-126, 131, 188, 346, 



416, 421, 426 

 Plumbago type of embryo sac, 124 

 Poa, 75, 138, 289, 290, 327, 348 

 Podocarpus, 411 

 Podophyllum, 33, 156 

 Podostemon, 103-105, 156, 161 

 Podostemon type of embryo sac, 106 

 Pogonia, 48 

 Polar nuclei, 13, 136 

 Pollen, development of, 155 



