Index 



845 



peloric, see Peloric toad- 

 flax. 



sterility of mutants, 477 



unusual pelorism, 486 

 Tomato, 653 



" Acme," 656, 657 



" Mikado," 654 



mutation of, 655 



upright, 654 



" Washington," 657 

 Tournefort 



author of genera, 33 

 Tracy, W. W. 592 

 Trees, genealogic, 707, 708 

 Tricotyls, 416, 418, 419, 420 

 Trifolium incarnatum, 353 

 Triticum dicoccum, 105 

 Tropaeolum, 193, 668 



majus, pelorism of, 485 

 "True Exercises with Plants" 



(Hunting), 490 

 Tulips, 149, 178, 274, 323 



black, 620 

 Turnip, 244, 621 

 Twisted stems, 402, 403, 405, 



413 

 Twisted varieties 



atavists of, 406 



U 



Ulex europaeus, 140, 217 

 Ulmus pedunculata, 615 

 pedunculata urticaefolia, 



615 



Umbellifers, 457 

 Umbilicus, 669 

 Unger, 105 

 Unit-characters, 249, 261. 306, 



307, 313, 658, 689, 715, 



716 



Urban, 265 



Uropedium lindenii, 487 

 Utility, 685, 724 

 Utricularia, 672 



Vaccinium Myrtillus, 577 

 Valerian, 402, 409 648 



twisted, 403 



Valeriana officinalis, 402 

 Vallisneria, 684 

 Van den Berg, 625 

 Van de Water, 614 

 Van Mons, 76, 77, 78, 806 

 Variability (see also Fluc- 

 tuation), 188, 190, 191 



analogous, 244 



apple, 75 



asexual, 320 



correlative, 142, 143, 148, 

 167 



cultivated plants, 66 



embryonic, 770, 771, 814 



ever-recurring, 190 



fluctuating (see also indi- 

 vidual), 62, 142, 190, 

 233, 375, 416, 454, 698, 

 759, 762, 765, 766, 767, 

 770, 771, 789, 805, 814 



fluctuating vs. mutability 

 568 



homologous, 244 



individual (see also fluc- 

 tuating), 190, 716, 718, 

 746, 749, 770, 814 



influence of mutation on, 

 335 



kinds of, 715 



nutrition and, 390, 391, 

 719, 771 



parallel, 243 



partial, 440, 444, 718, 746, 

 748, 753, 814, 816 



repeated, 242 



restricted, 598 



sectional, 317 



sexual, 320 



sources of, 758 

 Variation 



bud, 176, 178, 180, 284, 

 317, 318, 321, 338, 427, 

 750 



definition of, 188 



partial, 788, 789 



seed, 750 



spontaneous, 191 



use of term, 180 

 Variegation, 426, 427 



