TABLE OF CONTENTS. XI 



CHAPTER II. 



PAOB 

 POLYMOEPHY ...... 329 



Heterophylly, 330 Dimoi-phism, 333 Sports or bud-varia- 

 tions, 336. 



CHAPTER in. 



AliTEEATIONS OF COLOUR ..... 337 



Albinism, 337 Virescence, 338 Chromatism, 339. 



BOOK III. 



DEVIATIONS PROM ORDINARY NUMBER . 340 



PART I. Increased Number of Organs . 343 



CHAPTER I. 

 Multiplication of axile organs inflorescence . 346 



Multiplication of bi-anches, 346 PUca, 346 Polyclady, 347 

 Multiplication of branches of inflorescence, 348 Of bulbs, 

 360 Of florets, 351. 



CHAPTER II. 

 Multiplication of foliar organs 352 



Pleiophylly, 353 Multiplication of stipules, bractfl, &c., 357 

 Polypbylly , 358 Increased number of leaves in a whorl, 358 

 Polyphylly of bracts, 358 Of calyx, 358 Of corolla, 359 

 Of androecium, 361 Of gynoecium, 363 Of flower in general, 

 365 Increased number of ovules and seeds, 367 Of embryos. 

 369 Of cotyledons, 370 Pleiotaxy, "or multiplication of whorls, 

 371 Pleiotaxy of bi-acts, 371 Of calyx, 374 Of perianth, 375 

 Of corolla (hose in hose), 376 Andi-oecium, 379 Andixecium 

 of Orchids, 380 Pleiotaxy of gyncDcium, 388 Increased num- 

 ber of flowei"8 in an inflorescence, 391. 



