558 



INTRODUCTION TO CYTOLOGY 



Prionidus (bug), 377, 378 

 Prochromosomes, 57 

 Promitosis, 192 

 Promorphology of ovum, 419 

 Pronucleus, 242, 263 

 Prophase, meiotie, 256 



second meiotie, 264 



somatic, 105, 106, 134, 137 

 Proplastid, 69, 91, 417 

 Protamine, 27 

 Protein, 100 ff. 

 Protenor (bug), 376, 377 

 Prothallial cell or nucleus, 207 

 Protista, ectoplast, 39, 43 ff. 



mitosis, 191 



nucleus, 48, 189 



organismal theory, 22 



sex, 376 

 Protoplasm, 25-47 



chemical nature of, 25—31 



colloidal nature of, 36-39 



continuity, 16, 17, 18 



doctrine, 432 



early observations, 433 



physical nature, 31-33 



streaming, 31, 160, 161, 169, 185, 186 



structural theories, 433-435 



term, 433 

 Protoplast, 2, 433 



outline of structure, 103-104 

 Protoxylem, 175 

 Protozoa, amitosis, 184, 191 



cell theory, 429 



chondriosomes, 89 



differentiation, 10 



ergastic substance, 101 



flagellar apparatus, 223 



Golgi material, 74, 81 



meiosis, 277 



nucleus, 59, 189 



relation to Metazoa, 21 



syngamy, 245 

 Prowazek, 190, 278 

 Prozymogen, 77 



Prunus (angiosperm), 341, 351, 365 

 Prywer, 347 



Pseudoamitosis, 185, 187 

 Pseudoblepharoplast, 217, 221 

 Pseudochondriosomes, 91 

 Pseudogamy, 406 

 Pseudomixis, 404 

 Pseudomonas (bacterium), 194 

 Pseudonucleoli, 56 

 Pseudopodium, 32, 43 

 Pseudoreduction, 252 

 Psilotum (pteridophyte), 432 

 Pteridophytes, 204, 233, 386 

 Pteris (fern), 12, 138, 403, 405 

 Puccinia (fungus), 231, 380, 387 

 Punnett, 286, 308 

 Purkinje, 433 

 Purkinje cells, 73 



Pustularia (fungus), 83, 166, 167, 164, 281 

 Py, 71 

 Pycniospore, 231 



Pygcera (butterfly), 368 

 Pyknosis, 187 



Pylaiella (brown alga), 63, 280 

 Pyrenoid, 64, 68, 198 

 Pyronema (fungus), 281 

 Pyrrhocoris (insect), 376 

 Pyrus (angiosperm), 351 

 Pythium (fungus), 200, 229 



Q 



Quadripartition, 167 



Quadripolar spindle, 151 



Quadrivalent chromosomes, 350, 361 



Quadrula (mollusk), 225 



Quartets, 250 



Quercus (angiosperm), 238, 342 



Quisumbing, 10, 17 



R 



Rabbit. 184, 378 



Rabl, 145, 438, 440 



Raciborski, 66 



Radiations, 186, 189, 273, 316, 388 



Radium, 188, 311, 412 



Radlkofer, 437 



Rahn, 188 



Ramie, 178 



Ramsden, 40 



Ramslow, 230 



Randolph, heat treatment, 345 



heteroploidy, 342, 343, 346, 351, 366, 358 



hybrids, 360 



irradiation, 187 



plastid, 69, 72, 417 



Zea chromosomes, 123, 316, 317 

 Random assortment of chromosomes, 254, 291— 



293 

 RanunculacesB, 342 



Raphanobrassica (angiosperm), 367, 368, 370, 371 

 Raphanus (angiosperm), 364, 367, 370 

 Raphides, 102, 103 

 Rappeport, 379 

 Rat. 378 

 Ratcliffe. 190 

 vom Rath. 184, 440 

 Rathery, 89 

 Rau, 74, 272 

 Rauber, 436 

 Rawitscher, 231 



Reboulia (liverwort). 201, 233, 283 

 Recedent genom, 419 

 Receptive spot, 196, 197, 234 

 Recessive, 287 

 Reciprocal crosses, 418 



Reciprocal translocation, 315, 322, 327-338 

 Recombination of factors, 294-304 

 Redfield, 266, 306, 353 

 Reduction, 89 



of chromosomes (see also Meiosis). 250-283 

 Reed. G., 30, 57, 58, 59 

 Rees. C. W., 10, 223 

 Refringent body, 222 

 Regaud. 82, 84, 89 



