INDEX 



555 



CEdogonium (green alga), blepharoplast, 198 



gametes, 196, 199 



meiosis, 279 



mitosis, 190 



pyrenoids, 63 



syngamy, 227, 437 



zoospores, 19S 

 CEhlkers, 279, 334, 337 

 (Enothera (angiosperm), 334-338 



abnormal mitosis, 186 



apomixis, 409 



cytogenetic composition, 336 



fragmentation of chromosomes, 320 



gigas mutant, 339 



heteroploidy, 339, 343, 346, 347 



meiosis, 273, 334 



monoploid sporophyte, 356 



non-disjunction, 345 



parthenogenesis, 402 



pollen characters, 210, 308 



recombination, 304 



Renner complexes, 336, 336 



semisterility, 332 



structural hybridity, 336 



syngamy, 236, 238 



tetraploid, 357 



triploid, 352, 358 



twin hybrids, 338 



variegation, 416 

 Oes, 55 

 Ogata, 56 



Oguma, 121, 378, 379, 381 

 Ohashi, 190 

 Oil, 102 



body, 102 



droplet division, 169 

 Okabe, 280 

 Oleosome, 66 

 Olitsky, 89 

 Olive, 190, 192, 278 

 Oliver, 18, 311 

 Olpidiopsis (fungus), 165 

 Olson, 187, 311 



Oltmanns, 11, 64, 165, 196, 197, 226, 227, 278 

 One-plane theory of chiasma, 268, 269, 271 

 One-sided inheritance, 391 

 Ono, 340, 342, 390, 395 

 Onoclea (fern), 199, 233 

 Onslow, 25, 64, 93, 97, 100 

 Ontogenesis (see Development) 

 Oocytes or ovocytes, 213, 238 

 Oogenesis, in animals, 213, 214 



in plants, 196, 197, 200, 201, 206, 210, 211 

 Oogonia or ovogonia, 213 

 Oogonium (of plants), 197 

 Oomycetes, 199, 229, 281 

 Opercularia (infusoria), 277 

 Ophiocephatus (fish), 78 

 Opisthacanthus (scorpion), 86 

 Opossum, 378, 379 

 Orchidaceffi, 342 

 Orchis (orchid), 62 

 Organelle, 10 

 Organic acids, 96 

 Organismal theory, 20 ff., 435 



Orman, 85 



Ornithogalum (angiosperm), 66 



Orobanche (angiosperm), 210 



Oryza (angiosperm), 308, 350, 415 



Osawa, 402, 405 



Oscillatoria (blue-green alga), 192 



Osmiophilic platelets, 71, 81 



Osmosis, 42 



Osmunda (fern), 93, 405 



Ostenfeld, 402, 408 



Osterhout, 40, 59 



Ostwald, 33 



Otidea (fungus), 281 



van Overeem, 358 



Overton, E., 16, 40, 66, 440 



Overton, J. B., chromocenters, 57 



life cycle, 196 



meiosis, 256, 266 



parthenogenesis, 247, 402 



somatic mitosis, 140 

 Ovule, 210, 211 

 Ovum, 213 

 Owens, 80 

 Oxidase, 220 

 Oxidation, and chondriosomes, 88, 89 



and nucleus, 59 



in respiration, 04 

 Oxychromatin, 54, 55 

 Oxyria (angiosperm), 405 

 Oxyrrhis (flagellate), 189, 190, 223 

 Oxytrichia (inf usorian) , 277 

 Ozawa, 82 



Pace, 212, 236, 402, 407 

 Pachynema, 267, 268 

 Packard, 186, 412 

 Padina (brown alga), 280 

 Painter, deletion, 317, 318 



sex-chromosomes, 376, 378, 379, 393, 395 



somatic pairing, 123 



translocation, 322, 323, 324 



X-radiation, 187 

 Palla, 58 

 Palladin, 25, 64 



Pallavicinia (liverwort), 283, 440 

 Palm, 167 

 Palmer, 64 

 Paltauf, 6, 53 

 Palitdina (gastropod), 74 

 Panceolus (fungus), 230 

 Pancreas, 77, 88 

 Pandorina (green alga), 22 

 Pangenesis hypothesis, 441 

 Papaver (angiosperm), 308, 347, 363 

 Pappenheimer, 73 



Parachromosomio substance, 136, 149, 164 

 Paracopidosomopsis (insect), 410 

 Paradesmose, 189, 223 

 Paradinium (flagellate), 278 

 Paragenoplast, 149, 164 

 Paramitome, 434 



Paramoecium (inf usorian), 32, 42, 49, 245, 246 

 Paramylum, 66 



