840 



Index 



commutatum, 357 



dubium glabrum, 126 



hybridum, 663 



somniferum Danebrog, 163 



somniferum monstruosum, 

 371 



somniferum polycephalum, 



371 



Parris, 754 

 Parsley 



crisped, 158, 181 

 Parsnip, water, 457 

 Pea-family, 344 

 Peach, 138, 226, 240 

 Peach-almond, 769 

 Pears, 79, 90, 134, 147, 152, 



203, 283 



Pearson, Karl, 716 

 Peas, sugar, 135, 158 

 Pedicularis, 410 



palustris, 410 

 Pedigree-culture, 109 



experimental, 547 

 Pelargonium, 272, 355 

 Peloria, definition of, 164 

 Peloric toad-flax 



first record of, 466 



origin of, 459, 464, 473 



sterility of, 467 

 Pelorism 



Antirrhinum majus ( see 

 snapdragon ) . 



Digitalis purpurea, 483 



Gloxinia, 484, 485 



labiates, 486 



Laburnum, 485 



Lamium, 486. 



Linaria, see Toad-flax 



Linaria dalmatica, 482 



Linaria vulgaris, 464 



orchids, 479, 486, 487 



Salvia, 486 

 Scrophularia nodosa, 486 



snapdragon, 481 



toad-flax, 459-487 

 Tropaeolum majus, 485 

 Uropedium Lindenii, 487 



wild sage, 486 

 Peltaria alliacea, 663 



Pennywort, marsh, 668 



Penzig, 638 



Periodicity, law of, 365, 368, 



721, 722 



Periods, mutative, 706, 708 

 Periwinkles, 322 

 Persicaria, water, 433, 434, 



435, 643 

 Petalomany, 330 

 Petunia, 491, 626 

 Phacelia, 420, 422, 820 

 Phaseolus lunatus, 592 



multiflorus, 202 



nanus, 202 

 Phleum alpinum, 696 

 Phlox, 232 



drummondi, 161 

 Phyllonoma ruscifolia, 676 

 Physiologic units, 144, 153, 



249 



Picris hieracioides, 411 

 Pimpernel, scarlet, 162 

 Pinacothec, Munich, 164 

 Pine, 368, 804 

 Pine-apples, 90, 134 

 Pinks, 178 

 Pinus sylvestris, 368 

 Pistillody in poppies, 369, 



370, 372 



Pitcher-plants, 671 

 Plankton, 711 

 Plantago, 53 



lanceolata, 520, 671, 684 

 Plantain, 684 

 Plater, 610 

 Plum, 79, 134, 769 



beach, 58 



Japanese, 58 



purple-leaved, 619 

 Plusia, 204 



Poa alpina vivipara, 684 

 Podocarpus koraiana, 169 

 Polemonium coeruleum, 282 



coeruleum album, 200 



dissectum, 161, 202 

 Poly gala, 242 

 Polygonum amphibium, 433 



var. natans Moench, 433, 

 434 



