890 



INDEX 



Hltier, H. 849 



Hoarhound syn. Horehound 



Hoary Alyssum 147-149 



Vervain 264-266, 469, 659, 719, 789 

 Hock 707 

 Hodge 824 

 Hodson, B. R. 761 

 Hofmeister, W. 581 

 Hogenson, J. C. 849 

 Hogweed syn. Smaller Ragweed 

 Holcus lanatus 667 

 mollis 667 



sp.. Distribution 693 

 Holland Weeds 763 

 Hollyhock 213 

 Holm, Th. 584, 854 

 Holt, F. L. 861 



Holy Grass 27-28, 787, f. ^, 7/;2 

 Distribution 693, 741, m. 27 

 Seed 814 

 Honey Locust 180 

 Honeysuckle, Bush 307 

 Coral 307 



Family, Distribution 724 

 Hooker, J. D. 731, 737, 740 

 Hooker's BYanseria 485, f. W 

 Hooper, L. J. 767 

 Hop Clover 787, t- M 

 Distribution 734, 760 

 Low 183, 184-185, f. 185 



Distribution 718, 745, 761, m. 185 

 Seed 451, f. m 

 Hops 69, f. 602 



Hordeum caespitosum. Distribution 

 729 

 jubatum 58-61, 788, 808, f. 59, 60,758 

 Chemical composition 60, 61 

 Distribution 691, 715, 729, 730, 



757, 759, m. 60 

 Seed 423, 519-520, f. m, 505 

 murinum 677, 698, 701 

 pratense 667 

 pusillum 61-63, 787, f. 62 



Chemical composition 61, 63 

 Distribution 715, m. 62 

 Seed 424, f. m 

 secalinum 701 

 Horehound, distribution 720, 728 



Seed 470, f. po, 729 

 Horse Chestnut f. 597 



Nettle 67, 247, 283-285, 637, 777, 786, 

 787, 796, 799, 823, 833, 850, f. 

 S85, ess, 765 

 Distribution 720, 765-766, 844, m. 



285 

 Root 651 



Seed 471, 568, 630, f. Jps, 568 

 Sorrel syn. Sheep Sorrel 

 Horseradish 168-169, 788, f. 169 



Distribution 700, 712, 717, m. 169 

 Horsetail 667, 819, f. 6. 

 Distribution 736, m. 5. 

 Family 6 

 sp. 736 

 Horseweed 324-326, 657, 659, 660, 664, 

 778, 819 

 Distribution 324, 690, 696, 736, 



737, 754, TO. Sm 

 Root system 645 

 Seed f. m 

 Horton, H. B. 842 



Hosackia purshtana, Distribution 761 

 Hound's Tongue 256-267, 777, 787, f. 

 251 

 Distribution 719, m. £57 

 Seed 466, f. 1,66 

 Howltt, .T. B. 826, 842 

 Humus Soils, Weeds of 819 

 Hundeshagen, J. G. 842 

 Hungarian Brome Grass 419, 420 



Grass 506 

 Hungary, Weeds of 754, 843 

 Hunter, Robert 801 



Hutcheson, T. B. 856 

 Hutchinson, A. 766 

 Hutton, G. 850 

 Hyacinth 66 

 Hyaline layer 516 

 Hyams, C; W. 854 

 Htdrophtllaceab 4, 254-256 



Distribution 719 

 Hygroscopic movement in seeds 629, 



636 

 Hyoscyamus niger. Distribution 736 

 HTPEKICACEAE 4, 221, 223-224 



Distribution 724 

 Hypericum perforatum 223-224, t- 22J 



Distribution 788, 841, m. W, 

 Hypochaeris radicata 696 



Distribution 725, 728 

 Hypoderm 516, 865 

 Hypogynous flowers 610, /. 605 

 Hyssop, Giant, Seed 567, t IftO, 567 



Idaho Weeds 745, 757, 842, 844 

 Illinois weed legislation 794, 803-804 



Weeds 745, 751, 757, 765, 766 

 Immigrant weeds 743-769 

 Imperfect flowers 605 

 Indeterminate inflorescence 610, 866 

 India Weeds 767 

 India-rubber tree 69 

 Indian Currant 307, 308, 790 



Hemp 235-237, 651, 719 



Mallow 215-218, 557-558, 559, 687, 

 713, 762, 790, 822 



Mustard 446 



Plantain 493 

 Indiana weed legislation 804 



Weeds 747, 757, 766, 768, 838 

 Indians, Plants disseminated by 687 

 Indigo Plant, Distribution 734 

 Indigofera hirsuta. Distribution 734 

 Inflorescence 610-614, 866 



Catkin f. 606 



Composite 614, f. 613 



Corymb 612, 864 



Cyme 614, 864 



Determinate 610, 614, 864 



Head 612, f. 612, 61S 



Indeterminate 610, 866 



Mixed 610 



Raceme 611, 869, f. 612 



Spike 611, 870 



Umbel 612, 871, f. 613, 6« 

 Insects and weeds 674. 676-677 

 Integuments 619, 624, 866 

 Tntemode 866 



Inula helenium. Distribution 720 

 Involucre 614, 866 



as seed disseminator 631. 633 

 Iowa Homestead 284, 288, 334, 335, 

 391, 826 



Seed investigations 834-835 



Seed legislation 809-814 



Thistle 377-379, 495, 578, 789 



Tumbleweed 116, 631 



W^eed legislation 794-801 

 Proposed law 801-803 



Weeds 840, 841, 844, 845, 851 

 Ipomoea hederacea 243-245. 789, f. 21,3 

 Distribution m. 21,5 



purpurea f. 2^^, 2iS 



Distribution 696, m. 21,5 

 Seed 463, 564, f. W. 56S 

 Ireland, Weed laws 79 



Weeds of 846 

 Iris f. 617 



Ironweed 309-310, f. 309 

 Distribution m. 310 

 Seed 477, f. .477 



Western 310-311, 594, 790, f. SU 

 Distribution m. SU 

 Seed 477, f. .477 



sp. 807 

 Irregular flowers f. 605 

 Isle-of-man, Weed laws 793 



