x CONTENTS 



8. The Embryo 268 



Dicotyledons — Crucifer Type — Asterad Type — Solanad Type — Cheno- 

 podiad Type — Caryophyllad Type — Monocotyledons — Modifications of 

 suspensor — Unclassified and abnormal embryos — Unorganized and reduced 

 embryos — References . 



9. Apomixis 313 



Nonrecurrent apomixis — Recurrent apomixis — Generative Apospory — So- 

 matic Apospory — Unclassified Cases — Organization of Aposporic Embryo 

 Sacs — Development of Embryo in Aposporic Embryo Sacs — Adventive 

 embryony — References. 



10. POLYEMBRYONY 343 



Cleavage Polyembryony — Origin of Embryos from Cells of Embryo Sac 

 Other than Egg — Embryos Arising from Cells Outside Embryo Sac — 

 Embryos Originating from Other Embryo Sacs in Ovule — A Few Special 

 Cases — Twins and Triplets — Conclusion — References. 



11. Embryology in Relation to Taxonomy 357 



Empetraceae — Lennoaceae — Cactaceae — Garryaceae — Onagraceae — Calli- 

 trichaceae — Liliaceae-allioideae — Liliaceae-asphodeloideae — Liliaceae-lili- 

 oideae — References. 



12. Experimental Embryology 375 



Control of Fertilization — Embryo Culture — Induced Parthenogenesis — 

 Production of Adventive Embryos — Induced Parthenocarpy — Conclu- 

 sion — References. 



13. Theoretical Conclusions 411 



Male Gametophyte — Female Gametophyte — Fertilization — Endosperm — 

 Embryo — References. 



Name Index 433 



Subject and Plant Index 441 



