INDEX. 



295 



sepal to petal, 234 ; 5-merous 

 flower, 243, 259 ; bicarpellary 

 pistil, 259 : suppression of carpels, 

 260 ; reversion of flower, 263. 



Twin, embryo, 42 ; fruit, 51. 



Typha, male part of inflorescence, 

 208. 



Ulmus, forked and apically-infolded 

 leaf, 163. 



Umbel, f asciated ray of, 39 ; sessile, 

 231. 



Umbelliferos, structure of " inferior " 

 ovary, 109 ; superior ovary, 109 ; 

 solution of "inferior" ovary, 117; 

 suppression of secondary umbels, 

 231. 



Unifoliolate leafy carpel, 194. 



Union of flowers, 241. 



Unisexual flower, origin of, 193, 



257-258. 

 Uredinece, 124, 127. 

 Uropedium, androecium, 83. 

 Ustilago, cause of hermaphroditism, 



88, 97 ; cause of doubling, 175. 

 Utricle of Car ex, 7. 



Vegetable marrow, twin fruit, 51 ; 

 fasciated flower, 118; solution of 

 "inferior" ovary, 118. 



Vegetative proliferation, 5. 



Velenovsky, on flower of Geum, 9 ; 

 on proliferous larch-cone, 18 ; on 

 cone of Coniferse, 22-23 ; on poly- 

 phylly in Salix, 65 ; on androecium 

 of Cruciferse, 87 ; on superior 

 ovary of Epilobium, 111; on 

 phyllody in Anemone, 127 ; on 

 origin of calyx, 127 ; on anther- 

 structure, 171 ; on double Arab is, 

 174; on nature of ovule, 196; on 

 sessile umbels of Chserophyllum, 

 230; on fusion of axes in Loasa, 

 233 ; on synanthy in Lonicera, 

 241 ; on fusion of petals in 

 Forsythia, 251, in Arabis, 251- 

 252 ; on abortion of corolla in 

 Ranunculus, 254 ; on fusion of 

 stamens in Arabis, 256 ; on 

 abortive stamens of Ranunculus, 

 257 ; on evolution of flower, 

 260 ; on evolution of flower of 

 Bhoeadales, 261, of Oleaceoe, 262. 



Venus' fly-trap, phyllody of flowers, 

 124. 



Verbascum, proliferated inflorescence, 

 4 ; androecium, 84 ; free stamens, 

 116 ; heterostaminody, 181 ; sup- 

 pression of stamen, 256. 



Veronica, positive dedoublement of 

 calyx, 64, of corolla, 67-68, of 

 androecium, 85 ; bipartition of 

 petals, 68 ; tripling of petal, 68 ; 

 fusion of petals, 252-264; disepa- 

 lous, 252 ; structure of androe- 

 cium, 256 ; suppression of stamen, 

 257. 



Versatile anther, 170, 178-179. 

 Verticillaster, 239. 

 Vexillar-pelory, 149. 

 Viburnum, homomorphic flowers, 



142 ; zygomorphic central flowers, 



152-153. 



Vine, coherent leaves, 166, 209 ; 



lateral axis become terminal, 232 ; 



hypertrophy of pedicels, 249. 

 Viola, axillary buds, 29 ; pleiotaxy 



of corolla, 70; partial pelory, 70; 



spur-pelory, 146-147, 237 ; increased 



zygomorphism, 153 ; adnation of 



styles to stamens, 237 ; synsepaly, 



249. 



Violet, axillary buds, 29 ; spurless 

 pelory, 148 ; petaloid stamen, 

 174. 



Virescent, carpel, 55, 113, 194 ; 

 petals, 137-139; anther, 168; 

 ovules, 195-203 ; flowers, 246 ; 

 bract and pistil, 270. 



Vitis, sevenfold fruit, 50 ; reappear- 

 ance of carpels, 95 ; nature of 

 tendril, 95 ; adventitious grapes, 

 267. 



Vivipary, 124. 



Wall-flower, proliferated flower, 7, 8 ; 

 dialysis of ovary, 116-117 ; car- 

 pellody of stamens, 184 ; adven- 

 titious flower, 267. 



Wall-mustard, phyllody of flower, 

 124. 



Warming, on inflorescence of Boragi- 

 nacese, 39. 



Water-avens, proliferated flower, 8. 



Water-dropwort, fasciated umbel- 

 ray, 39 ; abbreviated secondary 

 umbels, 231. 



Water-lily, structure of calyx, 63 ; 

 5-sepalous flower, 63-64 ; sepalody 

 of petals, 140 ; displacement of 

 bract and sepals, 140 ; petalody 

 of stamens, 181. 



Welwitschia, forked cone, 39 ; fas- 

 ciated flower, 47-48, 203 ; squa- 

 mody of pistil, 203, 



Wheat-ear carnation, 15-16, 124, 

 125. 



