Spirally-twisted stem _Galium_ 323 174. Spirally-twisted root ('Gard. Chron.') 324 175. Interrupted growth of radish (American Agriculturist) 327 176. Interrupted growth in apple 327 177. Polymorphous leaves of lilac 331 178. Adventitious growth on frond of _Pteris quadriaurita_ 333 179, 180. Coloured flower-stalks of feather hyacinth (C. Morren) 347, 348 181. Multiplication of catkins, _Corylus_ 349 182. Branched inflorescence of broccoli ('Gard. Chron.') 351 183, 184. Supernumerary leaf of elm 353, 354 185. Supernumerary leaf of hazel 355 186. Multiplication of parts of flower in a plum ('Gard. Chron.') 366 187. Wheat-ear carnation 372 188. Multiplication of bracts in _Delphinium Consolida_ 373 189. Multiplication of bracts in _Pelargonium_ 373 190. Double white lily 376 191. Double flower of _Campanula rotundifolia_ 378 192. Diagram of usual arrangement of parts in _Orchis_ (Darwin) 381 193. Diagram of malformed flower of _Ophrys aranifera_ 385 194. Malformed flower of _Ophrys aranifera_ 385 195. Diagram of malformed flower of _Orchis 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. Regular dimerous flower of _Odontoglossum Alexandrae_ 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 nucifera_ 428 206. Elongation of flower-stalk, _Ranunculus acris_ 436 207. Linear leaf-lobes of parsley 438 208. Passage of pinnate to palmate leaves in horse-chestnut 439 209. Elongation of thalamus, apostasis, &c., in flower of _Delphinium_ (Cramer) 441 210. Adventitious growths from cabbage leaf 445 211. Crested fronds of _Nephrodium molle_ 447 212. Supernumerary petals, &c., _Datura fastuosa_ 450 213. Supernumerary petaloid segments in flower of _Gloxinia_ 451 214.