Xll 



LIST OF ILLUSTRATIONS. 



Stem (exogenous), showing 



cambium layer, ... 73 



Stigma of " Ten weeks' stock," 115 



Streptocarpus Greenii, . . 338 



Striking cuttings, ... 50 



Style, cellular tissue of, . . 112 



Syphocampylus Humboldtianus, 381 



Terminal cleft-grafting, . . 77 



Thorn-apple, , . . . . 539 



Tiger Lily, pollen of, . . 108 



Tongue-grafting, . . .. -75 



Tree Peony, . * . . 517 



Triangular pollen-grains, . . 107 



Tuber grafting, . . . 252 



Vanilla flower, column of, . 420 



Vine-eyes, . i .' '. . 569 



i! graft, a bow, . . . 82 



H it saddle, . . . 83 



., grafting, ... . .570 



Vitis vinifera, . , . . 567 



Walnut, catkins and fruit of, . 357 



Water-lily, . . . 403, 404 



Whip-grafting, ... 75 



Wistaria, root-grafting of, . 436 



