XX LIST OF ILLUSTRATIONS. 



PIO. PAOK 



190. Double white lily . .376 



191. Double flower of Campanula robindifolia . . 378 



192. Diagram of usual arrangenient of parts in Orchis (Darwin) . 381 



193. malfoi-med flower of Ophrya aranifera . . 385 



194. Malformed flower of Ophrys aranifera . . . 385 



195. Diagram of malformed flower of Orchia mascula (Cramer) . 386 



196. Multiplication of carpels, Tulip .... 388 



197. Section of St. Valery apple . . . .388 



198. Regular dimerous flower of Calanthe vestita . 402 



199. Odontoffhssum Alexandra . 402 



200. Hypertrophied branch of Pelargonium . . . 418 



201. Tubers in the axils of leaves of the potato . . . 420 



202. Hypertrophied pedicels of ash .... 421 



203. 204. Hypertrophy and elongation of flower-stalk, &c., in 



pears ..... 422,423 



205. Hypertrophied perianth, Cocos micifera . . . 428 



206. Elongation of flower-stalk, Banunculus acris . 436 



207. Linear leaf-lobes of parsley .... 438 



208. Passage of pinnate to palmate leaves in horse-chesnut . 439 



209. Elongation of thalamus, apostasis, &c., in flower of Delpldnium 



(Ci-amer) . . . . . . 441 



210. Adventitious growths from cabbage leaf . . . 445 



211. Crested fronds of Nephrodium molle . . 447 



212. Supernumerary petals, &c.. Datura faatuosa . 460 



213. petaloid segments in flower of Gloxinia . 451 



214. Catacorolla of Gloxinia (E. Morren) . . . 452 



215. Atrophied leaves of cabbage .... 460 



216. Abortion of petals, pansy .... 461 



217. Flower of Oncidium abortivum .... 462 



218. Bladder plum . . .464 



