562 



INTRODUCTION TO CYTOLOGY 



Spierer objective, 33 



Spinacia (angiosperm), 343, 346 



Spindle, 106, 107, 149, 162, 161, 162, 259, 274 



of cytokinesis, 171, 173 

 Spindle-attachment region, 106-109, 115-119, 

 123, 148, 332 



altered position, 320 



effect on crossing-over, 302 



fragments without, 317 



in translocations, 321 

 Spindle fiber, 150 

 Spindle substance, 149, 151, 152 

 Spirillum (bacterium), 43 

 Spirogyra (green alga), conjugation, 228 



cytokinesis. 111, 166 



gametes, 43, 45, 196 



hybrids, 308 



kinoplasm, 44 



meiosis, 279 



mitosis, 190 



nucleus, early observations, 437 



plastid, 63, 64, 72, 279 



pyrenoid, 68 



syngamy, 228, 437 



tonoplast, 42 



vacuoles, 228 



zygospores, 279 

 Spirostomum (protozoan), 50, 61 

 Spirulina (blue-green alga), 192 

 Spitzer, 59 



Splitting of chromosomes, in meiosis, 252, 255, 

 258, 261, 265, 275 



somatic, 105, 113, 133, 137, 145, 190 

 Spoehr, 27 

 Spongioplasm, 434 

 Spongospora (myxomycete), 190 

 Sponsler, 99, 100, 178, 179 

 Spore coat, 180, 181 

 Sporidia, 231 

 Sporocyte, 204 

 Sporodinia (fungus), 165 



Sporogenesis, 70, 196-198, 200, 204, 206, 209-211 

 Sporophyte, 122, 204, 383 ff., 401 ff. 

 Sporophytic budding, 404 

 Sprengel, C. K., 436 

 Sprengel, K., 426 

 Stabilizer, 35 



Stadler, 187, 188, 311, 316, 317, 356 

 Stains, 5, 7, 84, 139, 142 

 Stakman, 232 

 St&lfelt, 112, 171 

 Stalk cell, 207 

 Stemmkorper, 162, 163 

 Stancati, 382 

 Stangeria (cycad), 234 

 Starch, 66, 80, 97, 98, 99 

 Starfish, 240, 241 

 Stark, 139 

 Starks, 378 

 Steere, 352 



Steil, 199, 203, 403, 404 

 Stein, 51, 188 

 Stellaria (angiosperm), 415 

 Stenar, 107, 212, 239 

 Stenobothrus (grasshopper), 7, 162 



Stentor (protozoan), 50 



Sterility, 352, 354, 356, 358, 359 ff., 387, 419 



Stern, 68, 286, 301, 302, 303, 304, 321, 393 



Stethophyma (grasshopper), 258, 304 



Stevens, F. L., 199 



Stevens, N. M., 272, 378, 381 



Steward, 40 



Stieve, 55 



Stigeoclonium (green alga), 23 



Stigma (eyespot), 66 



Stiles, 40, 64 



Stizolobium (angiosperm), 331 



Stoel, 188 



Stole, 58 



Stoll, 64, 68 



Stolte, 49 



Stolze, 121 



Stomates in polyploid Zea, 358 



Stomps, 142, 345, 412, 416 



Stone, 395 



Stopes, 206 



Storch, 410 



Stork, 402 



Stoughton, 194 



Stout, 396 



Stow, 186, 273 



Strangeways, 3, 111, 187, 317 



Strasburger, apomixis, 401, 402, 407 



blepharoplast, 198 



cell-division, 439 



cell wall, 173, 174, 177, 178 



chondriosomes, 82 



chromocenters, 57 



chromomeres, 142 



chromosome number, 126 



cytokinesis, 171, 173 



eyespot, 67 



kinoplasm, 44 



meiosis, 262, 440 



Mendelism and chromosomes, 445 



mitosis, 190 



nuclei, origin of, 432 



nucleolus, 58 



nucleoplasm, 2 



nucleoplasmic ratio, 51 



nucleus in heredity, 285, 441 



protoplasmic continuity, 16 



recombination, 302 



sex determination, 375, 382, 388 



starch, 65 



syngamy, 437 



tetrad chromosome, 262 



tetraploidy, 345 



vacuoles, 94 

 Streaming, 31, 185, 186 



in cell-division, 160, 161, 169 

 Street, 179 

 Strepsinema, 259 

 Stroma, 67, 68 



Strongylocentrotus (sea urchin), 242 

 Structural hybrids, 336 

 Strugger, 53 

 Studnieka, 15, 182 

 Sturgeon, 222 

 Sturtevant, crossing-over, 299, 302, 320 



