INDEX 



511 



Sagittaria, proembryo, 317. 358 



stamens, 109 

 Salicaceae, Salicales, nectaries, 153 



perianth, 90, 92 



xylem, 54 

 Salix, flowers, 465 



nectaries, 152 



ovule, 260 



placentation, 239 



pollen, 160 



pollination, 152, 448 



stamens, 131, 173 

 pseudoterminal, 104 

 Salvia, anther dehiscence, 169 



stem, stelar type, 24 

 Samolus, androecium, 103 



placentation, 238 

 Sanguisorba, anemophily, 173 



carpel, 240 



cotyledons, 330 



pollen, 174 

 SanmiguelUi, fossil palm leaves, 449 

 Santalaceae, ovary, 247 



ovule reduction, 281 

 Santalales, embryo, 312 



ovule, 258, 278 



proembryo, 311 

 Santalum, flower, 277 



ovule, 278, 279 



placenta, 278, 279 

 Sapindales, xylem, 54 

 Sapotaceae, androecium, 103 

 Saprophytes, embryo, 351 



endosperm, 374 



reduction in ovule, 276 



vessels absent in some, 45 

 Sarcandra, androecium, 106 



carpels, 106 



flower, anatomy, 207, 435 



leaf, venation, 28 



stamens, 27, 132 



xylem, 47, 423 



(See also Chloranthaceae ) 

 Sarcopodales, seeds, 380 



taxonomic position, 278 

 Sarcopus, classification as "protangio- 



sperm," 466 

 Sargentodoxaceae, characters, 415 



embryo, 415 



flowers, 415 



relationships, 415, 422 



wood, 415 

 Sarracenia, megasporogenesis, 293 

 Sassafras, carpel, 189 



microsporangium, 144 



ovule, 267, 272 



Sassafras, stamens, fascicled, 105, 113 

 nectariferous, 98 



xylem, 468 

 Saururaceae, anemophily, 173 



pollen, 162 

 Saxifraga, pseudopolyembryony, 346 

 Saxifragaceae, androecium, 100 



hgules, 15 



ovule, 266 



petals, 149 



pollination, 170 



position of Pamassia in, 98 

 Scahiosa, proembryo, 311 

 Scalariform pitting, 43 

 Scaligera, embryo, pseudomonocoty- 



ledony, 359 

 Schedommrdus, embryo, 324 

 Sclieuchzeria, carpel, 'l86, 189, 224, 441 



embryo, 358 



flower, 440 



gynoecium, 185 



placentation, 442 



pollen, "dyads," 159 



pseudosyncarpy, 438 



stipules, 439 



syncarpy, 231 

 Schisandraceae, carpel, 190 



chromosome number, 429, 431 



flowers, 404 



node, 404, 430 



ovule, 272, 404, 427 



perianth, 404 



phloem, 404 



placentation, 404 



pollen, 404, 430 



relationships, 388, 404, 415, 422 



xylem, 404 

 Schizocotyledony, 344, 365 

 Schleiden, 245 

 Scilla, cotyledon, 28, 347 

 Scilleae, cotyledon, 329 



germination, 321, 330 

 Scirpus, microsporogenesis, 146, 174-175 



placentation, 206 

 Scitamineae, leaf, 19 



perisperm, 375 

 Scleranthus, ovule, 267 

 Scleropyrum, ovule, 278, 279 



placenta, 278, 279 

 Scorpiurus, carpel, 221 

 Scrophulariaceae, ovule, 270 



placentoids, 144 



stamens, 92, 104, 105, 132, 151 

 Scurrula, flower, 277 

 Scutellaria, inflorescence, 72 

 Scutellum, definition, 331 



form, 332, 333, 336, 338, 371 



