INDEX 



375 



Onoclea, 56, 98, 150, 166; Fig. 5; O. 

 sensibilis. Fig. 35 



Ononis, 258; O. fruticosus, Fig. 64 



ontogenetic growth pattern, 7, 165 



ontogenetic patterns, modification of, 

 305, 306 



ontogeny and phylogeny, 333, 334, 335 



Ophioglossaceae, 126, 166, 277 



Ophioglossum, 126, 134, 136, 138, 141, 

 169; O. moluccanum, 134, 135, 136, 

 139; O. pendulum, 134, 135, 136; O. 

 vulgatum, 126, 130, 131, 132, 133, 134, 

 135, 136; Figs. 5, 30, 31 



Opuntia aurantiaca, 289 



Orchidaceae, 268, 286, 289; Fig. 70 



orchids, 268 



Orchis latifolia, 268; Fig. 70 



organisation {see also homology of 

 organisation), 2, 4, 6, 21, 32, 33, 38, 

 46, 55, 64, 117, 131, 132, 148, 158, 

 164, 165, 167, 169, 170, 180, 232, 317, 

 322, 331, 332 



organising capacity, 183 



organogenesis, 31 



orientation of embryo, 159, 160, 162, 

 169, 220, 291 



Orobanchaceae, 282, 285 



Orobanche cernua, 282; Fig. 77 



Orobus, 258 



orthogenetic evolution, 12 



Oryza, 116 



osmotic values, 315 



Osmunda, 131, 149; Fig. 33; O. clay- 

 toniana, 14; Figs. 2, 33; O. cinna- 

 momea, 154; Figs, 7, 33 



Osmundaceae, 149 



van Overbeek, 18, 134, 299, 302, 303, 

 309, 322 



Overton, 57 



ovule, 172 



ovum, 175, 176; activation of, 287; in 

 bryophytes, 66; constitution of, 178, 

 190, 319; cytoplasmic organisation 

 of, 6, 165; description of, 7; en- 

 vironment of, 7, 175, 225; fertilisation 

 of, 190, 228; metabolic differences 

 in, 66; nucleus of, 1 76, 1 77 ; nutrition 

 of, 177; position of, 6; protoplasmic 

 differentiation in, 220; size of, 190; 

 storage materials in, 177, 221 

 Oxalis, 242 

 Oxyspora paniculata. Fig. 58 



13 



paedogenesis, 11, 87, 334 



paedomorphosis, 334 



Pallavicinia, 73 



parallel development, 10 



parallel evolution, 3, 4, 5, 124, 185, 188, 



219,221,249, 324, 327 

 parallel genetical systems, 318 

 parallelisms, 170 

 parasites, 227, 278, 279, 282, 285 

 parenchymatisation, 103 

 parthenogenesis, 57, 66, 156, 158, 286, 



287, 293; induction of, 295, 297, 298 

 Paspalum, dilatatum, 274, 276; Fig. 73 

 pattern, 26, 33, 170 

 patternised distribution of metabolites, 



123, 130, 165 

 Pearson, 219 

 Pediastrum, 44 

 Pelloea viridis, 158 

 Pellia, 63, 64; P. calycina. Fig. 15 

 Peltiphyllum peltatum, 248; Fig. 61 

 Pelvetia, 51, 55, 56 



Penthorum sedoides, 248, 257; Fig. 61 

 Pentstemon, 225 

 Peperomia, 224, 240 

 Peperomia pellucida, 227 

 Percival, 272, 276 

 periblem, 236 

 Perotti, 296 

 Persoonia, 257 



Petunia, 312; P. violaceae, 298 

 Pfeiff'er, 255 

 Phalaenopsis, 268, 270; P. grandiflora. 



Fig. 70 

 Phascum cuspidatum, 66, 80, Fig. 18 

 Phaseolus, 258; P. multiflorus. Fig. 64 

 Phelipaea, 282 

 Pherosphaera, 214 



phyletic gaps, 3, 171, 317, 323, 328, 329 

 Phyllocladus, 208 ; P. alpinus. Fig. 48 

 Phylloglossum drummondii, 93, 102 

 phyllorhize, 162, 163 

 phyllorhize theory, 146, 147 

 Phyllospermae, 175 

 Phylogeny, 5, 83, 221, 222, 324; of 



angiosperms, 252 

 physical factors, 26, 159, 331 

 physiological factors, 319 

 physiological genetics, 34, 316 

 phytonic theory, 141, 146 

 Picea, 191; P. excelsa. Fig. 43 

 Pijl, 288 



