880 



INDEX 



Vetch 199 

 Yarrow 674 

 Wild Radish 674 

 Wire Grass 43 

 Chemical sprays 847, S48, 849, S50, 



851, 852 

 Chenopodiaceae 3, 99-113, 633 

 Bibliography 582 

 Distribution 716, 724, 743, 747 

 Seed 431-433, 532-533 

 Chenopodium album 107-109, 664, 676, 

 697, f. 108, 695 

 Chemical composition 109 

 Distribution 691, 696, 716, 729, 



795, 829, m. 109 

 Seed 432, 532, f. .',32, 532 

 ambrosioides 103-104, 775, 790, f. 101, 



Distribution 696, 738, 746 

 anthelminticum 103 

 botrvs /'. t05 



Distribution 716, 746 

 glaucum, Distribution 74 6 

 hybridum 105-107, 789, f. 106 

 Distribution 716, m. 107 

 Seed 432, f. )■',: 

 murale, Seed f. )■',: 

 rubrum. Distribution 74 6 

 urbicum, Distribution 74 6 

 Cherry, Black, Wild f. 037 

 Fire 703 



Ground 277. 279-280, 657, 7S9, f. 2S0 

 Distribution m. 880 

 Root 651 

 Seed 569 

 Red, Distribution 694, f. 56S 

 sp. 630, 632, f. 612 

 Winter f. 623 

 Chesnut, V. K. 853 

 Chess 4S-50, 788, 819, f. 1,9 



Chemical composition 48, 50 

 Distribution 692, 715, 733, 736, 



in. 50 

 Seed 420, 517, 814, f. ',19 

 Soft 46-48, 789, /". ',7 



Chemical composition 46, 4 8 

 Distribution 715, 733, m. !,7 

 Seed 419, f. .',19 

 Chestnut, Horse f. 597 



Water, Distribution 712 

 Chickweed 121-122, 629, 661, 663, 786, 

 787, f. 121 

 Distribution 696, 708, 716, 725, 



735, in. 122 

 Seed 435, 810, f. .',35. 685, 6SS 

 Mouse-ear 122, 787, f. J:-: 



Distribution 716. 740 

 Larger, Distribution 124 

 Nodding 122-123, f. 123 

 Distribution 122 

 Chicory 384-386, 778, 789, 793, f. 386 

 Distribution 688, 692, 70S, 721, 



727, 754, m. S86 

 Seed 496, 579, 814, 836, f. 1,96, 579. 

 676, 688, 711 

 Chile, Seeds 836 



Weeds 728 

 Chilean Dodder 464, 465, 828, 836 

 Chives 66 

 Chlorophyll 600, S63 



cell f. 599 

 Chloroplast 598 

 Christianson, C. & G. R. 749 

 Chromatophore 863 



Chrysanthemum leucanthemum v. pin- 

 natifidum 362-364. f. 363 

 Distribution 720, 727, 755, 808, to. 



363 

 Root system 654 

 Seed 492, f. 1,92 

 rust 678 

 segetum 



Distribution 735, 736 



Chufas 63 



Cichorium intybus 384-386, 77S, 789, 

 f. 385 

 Distribution 712, 721, 727, to. 386 

 Seed 496,^79, 754, f. 1,96, 579, 688, 711 

 Cicuta maculata 2::o-i>33, 596, 776, 788, 

 f. 201, 232. 183 

 Distribution to. 231 

 Seed 460, f. 1,61 

 virosa 



Distribution 736 

 Cieslar, Ad 830, 856 



Cinquefoil 175-176, 592, 596, 614, 632, 

 789, f. 176, 638 

 Distribution 742, TO. 176 

 Seed 448, 449, f. 1,1,9 

 Shrubby 842, Mn 

 Silky, Distribution 734 

 Silvery syn. Silverweed 

 Cirsium acaule 667 

 Distribution 736 

 alteraceum, Distribution 736 

 altissimum 790 



Seed 494, f. 1,95 

 arvense 379-382, 592, 667, 788, 796, 

 799, 808, 819, f. 3S0. 881, 592 

 Distribution 712, 721, 727, 735, 



736, 748-749, in. 381 

 Root 651 



Seed 494, 810, f. 1,91, 

 canescens 374-476. 790. f. 37}, 375,71,9 



Distribution 721. 749-750. TO. 375 

 discolor 376-377, 789, f. 376, 377 



Distribution to. 377 

 drummondii. Distribution 694 

 drummondii v. acaulescens, Distri- 

 bution 694 

 eriocephalum, Distribution 694 

 foliosum, Distribution 694 

 heterophvllum, Distribution 736 

 ioense 377-379, 789, f. 878 

 Distribution m. 878 

 Seed 495, 578, f. 1,95. 578 

 lanceolatum 372-373, 667, 789, f. 878 

 Distribution 695, 721, 725, 727, 



736, in. 373 

 Root svstem f. 650 

 Seed 49 5, f. 1,9', 

 palustre 667 



Distribution 736, 748 

 pratense, Distribution 712 

 sp. 676. 693 

 undulatum 

 Root 651 

 Seed 495, f. 1,95 

 City Goosefoot, Distribution 746 

 Clammy Weed f. 172 

 Distribution 717 

 Clapper, M. 763 



Clark, G. H. 24, 57, 59, 76, 80, 97, 111, 

 126, 130, 132, 138, 147, 149, 151, 

 250, 251. 294, 297, 301, 328, 360, 

 362, 382, 384, 390, 391, 394, 399, 

 825, 826, 827, 836, 839, 860 

 Clarke, G. W. IV, V 

 Claviceps purpurea 678, 680 

 Clav soils, "Weeds of 819 

 Claypole, E. W. 703, 706, 839 

 Cleavers syn. Bedstraw 

 Cleistogamous flowers 629 

 Cleome serrulata 173-175, 789, f. 171,- 



Distribution 693, 717, 729, 730, to. 

 171, 



Seed 44 8, f. U8 

 Climbing Milkweed 241, 242, 243 

 Clinton 765 



Clinton, G. P. 826, 839 

 Clotbur 625 



Spiny 334, f. 336 



Distribution 698, 713, 737, 754, S21 



Seed 485-486, f. ',S5 



