884 



INDEX 



Smooth 76-78, 787, 794, 796, 799, 

 f. 77, 78 

 Root system 654 

 1 distribution m. 77 

 Seed 427, f. 1,27 

 Sour syn. Curled Dock 

 sp. 592, 630, 649, 660, 665, 667, 67b, 

 678, 687, 734, 773, 774 

 Seed 832 

 Tall. See Curled Dock 

 Yellow. See Curled Dock 

 Dodder 645, 665, 688, 838, 839, S50, 

 852 

 Alfalfa 252 

 Seed 810 

 Chilean 



Seed 465, 828, 836, f. 1,65 

 Clover 250-252, f. 251. 158 



Distribution 719, 725, 729, m. 251 

 Seed 465, 564, 810, 828, 835, f. 

 1,65, 563, 638, 726 

 Lesser /'. 855 

 Field 252-254, f. 258 



Distribution 719, 729, m. 25!, 

 Seed 464, 810, f. !,6<, 

 Flax f. 153 

 Perennial 843 

 sp. 645, 692 



Seed 640, 814, S33, 834, 856, 857 

 Thyme f. 253 

 Dodson, W. R. 840 

 Dog Grass 774 

 Dop Fennel sun. Mayweed 

 Dogbane Family 234-237 

 Distribution 72 3 

 Spreading 235, 237 



Distribution 719, m. 285 

 Dooryard Knotgrass stjn. Knot 



Knotweed 84-85, 42S, 659, 710, 736, 



742 

 Plantain syn. Common Plantain 

 Dooryard weeds f. 85 

 Dormant period 786 

 Dorph-Petersen, K. 82 8. 856 

 Doryphora deeemlineata 677 

 Downy Brome Grass 50-52. 420, 714, 



715, 728, 819 

 Dragon Root f. 596 

 Drains clogged by weeds 682 

 Dropseed Grass 785, 790, 850 

 Seed 834, f. 676 

 Mexican 32-34, 660, f. S3 

 Chemical composition 34-35 

 Distribution 715, m. 33 

 Seed 413-414, f. >,V, 

 Drug plants 853 



Preparing for market 780-781 

 Raising 773, 780-781, 854, 855 

 Drugs, Root 853 

 Drysdale, J. 851 

 Duggar, J. F. 853 

 Duncan, J. H. 768 

 Duvel, J. W. T. 835, 856 

 Over's Green Weed 667 



Distribution 718 

 Dyssodia chrvsanthemoides syn. of 

 panposa 356-358, 7S9. f. 857, 858 



Distribution 705, 720, 755, m. 857 

 Seed 490-4 91, f. .',91 

 Trichomes f. 1,01 



Farnshaw, G. T. 851 



Eaton, A. J. 848 



Echinochloa crusgalli 16-17, 790, f. 16 

 Chemical comnosition 17 

 Distribution 714, 731, m. 16 

 Seed 411-412, 506. f. ill, 505, 729 



Eehinocystis lobata, Seed f. 571, 



Echinospermum lappula syn. Lappula 

 echinata 



Echium vulgare 468, f. !,6S 

 Distribution 719 



Eclipta alba, Distribution 756 



Economic plants 853 



Edson, H. A. 848 



Edwards, A. H. 763 



Eelworm, Stem. 677 



Egg, 620, f. 621 



Egg-case 617 



Eggert, Henry 747, 766 



Ehinger, G. E. 756 



Ehrhart, F. 840 



Eichornia crassipes, Distribution 712 



Elatinacear 



Distribution 724 

 Eleagnus f. 602 

 Elder, Marsh 332-334, f. 333, 7.72 



Distribution 720, 729, 751-753. m. 



; ; ; 



Seed 482, 814 

 Elecampane 



Distribution 709, 720 

 Eleocharis palustris, Seed 407-408, f. 



1,07 

 Eleusine indica 41-43, 788, f. 1,2 

 Chemical composition 43 

 Distribution 696, 698. 715, 733 

 Seed 416. f. 1,16 

 Elliott, W. B. 763, 767 

 Elkweed 



Distribution 694, 840 

 Ellisia, Common 255-256, f. 255 

 nyctelea 255-256, f. 255 

 Distribution 719, m. 256 

 Elm 69 



Distribution 695 

 Elodea canadensis 



Distribution 740 

 Embryo 621-623, 624, S64. f. 622 



Sac 620, f. 620, 621 

 Endive, Wild 7:':: 

 Endosperm 865 

 England, Weeds of 763 

 English Charlock 155-157, 444, 542, 

 543, 701, 717, 735 

 Plantain sun. Buckhorn 

 Rye Grass syn. Perennial Rye Grass 

 Envelopes, Floral 609, f. 609 

 Epicarp 865 

 Epichloe tvphina 677 

 Epiderm 865 



Epidermal cell. See Cell, Epidermal 

 Epidermis 597, f. 598 

 Epigaea, sp. 702 

 Epigynous flowers 610, f. 611 

 Epilobium angustifolium 



Distribution 693, 694, 726, 741 

 hirsutum 



Seed 829 

 roseum 



Seed 829 

 sp. 703 

 spicatum 



Distribution S4 

 Equishtaceab 3, 6 

 Equisetum arvense 5, 6, f. 5, 6 

 Distribution 736, m. 5 

 palustre 849 



Distribution 736 

 Eradication of weeds 846-853 



Also See species 

 Eragrostis pilosa 45-46, 789, f. 1,5 

 Distribution 715, 732, m. 1,6 

 Seed 417, 740, f. 1,16 

 Pilose, syn. Spear Grass 

 Erechtites hieracifolia 36S-369, 77S, 

 789. f. 869 

 Distribution 6^5, 721, m. 369 

 Seed 492, f. 1,92 

 sp. 703 

 Erect Knotweed 82, 83, 429, 526, 696, 



716, 725, 789 

 Ergot 680, 814, 815, f. 639 

 Rye 678 



