896 



INDEX 



Nelson, A. E. 844 



Nepeta cataria 273-274, 777, f. 274 

 Chemical composition 273 

 Distribution 719, m. 273 

 Root system 654 

 Seed 469, 566-567, f. 1,69, 567 

 hederaeea 275-276, f. 275 

 Distribution 719, m. 276 

 Nerve 867 



Neslia paniculata 163, f. 163 

 Distribution 717 

 Seed 829 

 Nettle. Day 664 



Dead 665, 72 3, 822 



Distribution 719, 723, 727 

 Family 69-74 

 Distribution 725 

 Seeds 424-425. 524-525 

 Hemp, Distribution 720, 727 

 Horse 67, 283-284, 285, 786, 794, f. 

 285, 638, 765 

 Distribution 705, 720, 765-766, m. 



285 

 Root svstem 651 

 Seed 471, 568, 637, f. 1,72, MS, 6SS 

 Sp. 736 



Stinging (Urtica dioica) 667 

 Stinging (U. gracilis) 69-70, 788, f. 

 69, 602, 603 

 Chemical composition 70 

 Distribution 708, 715, m. 70 

 Root 652 

 Seed 425, f. ',!■', 

 Nevada seed investigations 831 



Weeds 757, 842 

 New Brunswick, Weeds of 750, 762 

 New England Flora 714 



Weeds 709 

 New Hampshire seed legislation 833 



Weeds 748, 845 

 New Jersey weed legislation 794 



Weeds 757, 765, 841 

 New Mexico, Weeds of 757, 846 

 New South Wales Flora 731 



Weeds 843 

 New York 



Seed investigations 833-834 

 Weed legislation 794 

 Weeds 747, 750, 757, 760. 765 

 Newberrv 766 

 Newell, W. 757, 760 

 Newfoundland weeds 754 

 Newman, C. L. 842 



Nicandra phvsaloides, Distribution 737 

 Nichols, Mary A, 477, 478, 489, 582 

 Nicotiana glauca, Distribution 696 

 Nigger-head sun. Black-eyed Susan 

 Nimble Will 30-33, f. SI, S3 



Distribution 715 

 Night-flowering Catchfly 130-132, 437, 



638, 716, 790, 810, S14 

 Nightshade, Black 281-283, 625, 630, 

 7 7 7, 790, f. 281, 282 

 Distribution 687, 696, 697, 720, 736, 



m. 282 

 Root svstem 645 



Seed 277, 291, 471-472, 569, f. bit, 

 568 

 Deadly 736 

 Family 277-291 



Distribution 725, 765, 767 

 Seed 471-472, 568-569 

 sp. 677, 738 

 Spiny, Seed 569, f. 568 

 Three-flowered, Distribution 738 

 Nobbe, F. S27, 830, 850, 858 

 Nobbs. E. A. 850 

 Nodding Chickweed 122-123 



Smartweed 86-87 

 Nodes 651, 867 



North America, Indigenous plants of 

 740-743 

 Weeds 696, 731, 732, 733, 734 



North Carolina medicinal plants 854 

 Pure Seed Act 832 

 Seed investigations 830, 860 

 North Dakota. See Dakota, North 

 Northern Fireweed 694, 703, 726, 741 

 Nut Grass 63, 64, 696, 697, 715, 741, 

 790 

 Extermination 63 

 Northwest Territories weed legislation 



793 

 Norton, J. B. S. 833, 844 

 Norway, Weeds 852 

 Notchweed f. 59.', 

 Nova Scotia, Weeds 756 

 Noxious "Weed Act 793 

 Noxious weeds 796 

 Nucellar layer 516, f. 513 

 Nucellus 619, 867 

 Nucleus 616, 617 

 Nut Grass, Northern 63, 790, f. 64 



Distribution 696, 697, 715, 741, 

 m. 6) 

 Southern 63 



Distribution 722, 723 

 Nuttall, Thos. 374 

 Nyctaginaceae 3, 119-120, 533 



Distribution 716, 724 

 Nyctelea 660 



Oak, Distribution 695 



Transpiration of 671, 673 

 Jerusalem, Distribution 716, 746 

 I »ak-leaved Goosefoot, Distribution 746 

 Oat Grass Seed 810 



Bulbous sun. Pearl Grass 

 Tall. Seed 813 

 ( >ats S. f. 609 



Blindness of 677 

 Distribution 715, 736, m. !,1 

 Seed 415-416, 674, 810, 814, 829, 

 f. .',16 



Impurities in 155, 674, 692, 829 

 Side 689 



Wild 40-41, 415-416, 664, 665, 679, 

 715, 736, 789, 793, 810 

 O'Brine, D. 837 

 O'Connor, John 750 



Oenothera biennis 224, 225, 776, 788, 

 819, f. 285 

 Distribution 690, 718, 762, m. 225 

 Seed 560, f. 560 

 grandiflora, Distribution 696 

 laciniata, Distribution 7 37 

 sinuata syn. O. laciniata 

 sp. 734 

 Oesterle 538, 553 

 Offshoot 654 

 Ohio Flora 723 



Seed investigations 831 

 Weed legislation 794, 807-808 

 Weeds 747, 753, 757, 766, 825, 842, 

 843, 845 

 Oklahoma Flora 838 



Weeds 838 

 Okra 213 

 Old Witch Grass 12-14, f. 13, 706 



Distribution 660, 714, 740, m. 11, 

 Seed 410, 82 8, f. 1,10, 676 

 Oleaster f. 602 

 Oleaceae,, Distribution 724 

 Olive, E. W. 850 

 Olive Family, Distribution 724 

 I Uson, O. M. XI 

 Omaha weed legislation 806 

 Onagraceae 4, 224, 225, 776 

 Bibliography 5 86 

 Distribution 718, 724, 762 

 Seed 460, 560 

 Onion 6, 66, 624 



Wild 67, 623, 852, f. 68 

 Distribution in. 68 

 Seed 814 

 Ononis spinosa 667 



