1NJ)EX 



449 



Sporogenesis, and sex-determination, 



355-356 



Sporophytic budding, 312, 315 

 Sprengel, C. K, 13 

 Sprengel, K., 5 

 Stains, 117 



Stangeria (cycad), 294, 298 

 Staphylea (angiosperm), 239 

 Starch, 106, 107, 112, 134 

 Starfish, 285, 287 

 Steil, 288, 313, 314 

 Stein, 61 



Stemonitis (slime mold), 85 

 Stentor (protozoan), 60, 62, 69 

 Stevens, F. L., 289, 290 

 Stevens, N. M., 256, 358, 360, 361 

 Stomps, 155, 248, 256, 345-347 

 Storage, 66, 106, 133 

 Stout, 159, 372 

 Strasburger, amitosis, 213 



apogamy and apospory, 311, 315, 

 316 



blepharoplast, 85 



cell-division, 143 



cell wall, 190, 193 



centrosphere, 76, 79, 80 



chromomeres, 155, 156, 258 



chromosome number, 163, 164 



chromosomes (somatic), 149, 158 



cytokinesis, 186, 190 



ectoplast 43 



eyespot, 111, 112 



fertilization, 300 



mitosis in myxomycetes, 208 



nuclear fusion, 14, 273 



nuclei by division only, 10 



nucleolus, 66 



nucleoplasmic ratio, 62 



nucleus in heredity, 16, 324, 327 

 of Marsilia, 210 



protoplasm, 34 



protoplasmic connections, 47 



reduction, 220, 222, 236 



sex-determination, 355, 356, 364 



somatic pairing, 256 



spindle, 180, 181 



spore wall, 194 



starch, 106 



tetraploidy, 345 

 Stratiotes (angiosperm), 212 

 Streaming in cell-division, 183, 189 

 Strepsinema, 231, 233, 238 

 Strepsitene, 231, 233 

 29 



Stroma, 105 



starch, 109 

 Strong, 376 

 Strongylocentrotus (sea urchin), 287, 326, 



327 



Structure and function, 374 

 Studnicka, 96 

 Sturgeon, 274 

 Sturtevant, 371, 376, 389 

 Styela (ascidian), 329 

 Stypocaulon (brown al ga), 79 

 Suberin, 194 

 Sugars, 106, 135, 136 

 Supernumerary chromosome, 358 ff. 

 Surface tension in cytokinesis, 188 

 Surirella (diatom), 79 

 Suspensoid, 35 

 Sutton, 158, 160, 228, 245, 251, 252, 253, 



255 



Swarczewsky, 281 

 Swarm spores and colony, 140, 331, 334, 



411 



Swingle, D. B., 186, 187 

 Swingle, W. T., 79, 186 

 Sykes, 256 



Symmetry, 139, 329, 334 

 Synapsis,'227, 233, 251 ff. 



and degeneration, 259 



nature of union, 256, 384, 394 

 Synaptene, 231, 233 

 Synaptic mates, relationship, 251-254 

 Synchytrium (fungus), 62, 187 

 Syndiploid nuclei, 259, 260 

 Synergids, 299 



Syngamic sex-determination, 357 

 Syngamy, 222 

 Synizesis, 231, 233, 237, 238, 255 



in somatic cells? 259 

 Synkaryon, 278, 282, 292 

 Synochocystis (blue-green alga), 205 



Tackholm, 248, 348 



Tahara, 256 



Tamus (angiosperm), 47 



Tangl, 46, 47 



Tannin, 194 



Tapetal cells, 59, 210 



plasmodium, 194, 196 

 Taraxacum (dandelion), 315 

 Tassement polaire, 149 

 Taxodium (conifer), 295 



