X CONTENTS. 



Anteposition or Superposition ...... 248 



Coalescence of Parts ........ 249 



Adnation or Consolidation ...... 250 



Irregularity ......... 253 



Suppression or Abortion ...... 255 



Unusual States of the Receptacle . . . • . . 2(?6 



The Disk 267 



Sect. V. The Floral Envelopes in Particular . . 268 



Their Development or Organogeny . . .  . 2G8 

 Their Estivation or Prasfloratioa . . . . .269 



The Calyx 274 



The Corolla 275 



Sect. YI. The Stamens 279 



The Filament and Anther . . . . . . .281 



The Pollen . 285 



Sect. VII. The Pistils 287 



The Simple Pistil 288 



The Placenta 289 



The Compound Pistil ....... 290 



Modes of Placentation 292 



Gj'nascium of Gymnospermous Plants .... 296 



Sect. Vni. The Ovule 297 



Sect. IX. Fertilization and FoRMATiotf of the Embryo 300 



Parthenogenesis ........ 300 



Access of the Pollen . . . . . . . .301 



Action of the Pollen on the Stigma ..... 302 



Origin of the Embryo .304 



CHAPTER X. — OF THE FRUIT 308 



Sect, I. Its Structure, Transformations, &c. . . 308 



The Pericarp or Seed-vessel 308 



Obliteration or Alteration 309 



Ripening, Dehiscence « 310 



Sect. II. Its Kinds 311 



