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 2CC 



The Disk 2G7 



Skct. V. The Floral Envelopes in Particular . . 2C8 



Their Development or Organogeny .... 2G8 



Their ^Estivation or Praefloration. 209 



The Calyx 274 



The Corolla 275 



Sect. VI. 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 Plaeentation 292 



Gynaecium of Gymnospermous Plants .... 296 



Skct. VIII. The Ovule 297 



Sect. IX. Fertilization and Formation 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 



Skct. II. Irs Kinds 311 



