516 
Size, alterations in, 411 
Solenaidie, 21, 316 
Solution, 59, 76 
bibliography, 82 
of calyx, 77 
plants subject to, 82 
of stamens, 82 
Spathes, increased number of, 357 
Speiranthy, 91, 325 
Spiral torsion, 319 
plants subject to, 325 
of leaf, 326 
of receptacle, 324 
Spines, 456 
Sports, 336 
Spurs, formation of, 228, 315 
Stamens, see Andreecium 
abortion of, 463 
adhesion of, 34, 35 
cohesion of, 29 
compound, 294, 345 
dialysis, 73 
enation from, 453 
fission of, 68 
in ovary, 183 
petalody of, 283 
phyllody of, 253 
pistillody of, 303 
tubular, 316 
Staminody, of accessory organs, 301 
of bracts, 298 
petals, 298 
pistils, 299 
sepals, 298 
Stasimorphy, 216 
Stem, see axes 
Stipules, increased number of, 357 
Strawberry, Plymouth, 275 
blind, 195 
Suppression, 393 
of andreecium, 405 
flower, 408 
foliar organs, 395 

INDEX TO SUBJECTS. 
Suppression of ovules, 407 
remarks on, 409 
of seeds, 407 
Symmetry, 213 
Synanthy, 37 
bibliography, 45 
plants subject to, 44, 508 
Synearpy, 45 
Syngenesia, 29 
Synophty, 57 
Synspermy, 50 
E. 
Tendrils, adventitious, 326 
formation of, 473 
Thalamus, see Receptacle 
Thorns, 456 
Torsion spiral, 319 
Tubers, 421 
in axils of leaves, 142 
Tubes, formation of, 312, 509 (see As- 
cidia, Solenaidy, Spurs) 
Tubular petals, 314 
stamens, 316 
U. 
Union, 8 
Unisexuality, 195 
Uovoli, 420 
We 
Varieties, dwarf, 411 
Venation, 338 
Virescence, 338 
Viviparous plants, 106, 168 
Wie 
Warts, 444 
’ Wheat-ear carnation, 371 

