876 



INDEX 



Seed 489, t Ifi9, SiS, 6S5 

 Black ayn. Beggar-ticks 

 Small 



Distribution 720 

 Sp. Seed f. i89 

 BelUs perennls 667 

 Bennett, J. L. 766 

 Bent Grass 667 

 Pine 664, 665 

 Reed, Distribution 736 

 Silky, Seed f. 639 

 Bentham, G. 731, 838 

 Beebebidaobab, Bibliography 582 



Distribution 723 

 Bermuda Grass, Distribution 732 

 Bergen, J. W. 838 

 Bergen and Davis XII 

 Berlin Botanical Garden, weeds dis- 



trtbuted by, 753 

 Bemholtz, L. 748 

 Berry 625 

 Bersch. W. 847 



Berteroa incana 147-149, 788, f. US 

 Distribution 700, 713, 717, m. liS 

 mutabllis 



Distribution 700 

 Bessey, C. E. 288, 584, 748, 755, 756, 



758, 760, 761, 825, 847 

 Bessey, E. A. XII, 831, 855 

 Beta 532 



vulgaris 725 

 Bettomer, Ellen 755 

 Bexar 767 

 Bibliography 



Anatomical study of seed coats 



580-587 

 Chemical composition of weeds 837 

 Distribution of weeds 837-846 

 Eradication of weeds 846-853 

 Medical plants 853-855 

 Weed laws 860 

 Weed seeds 855-860 

 Bidens 624, 633, 789 



aristosa 352-354, 489, 790, f. S5S 

 Distribution m. S5i 

 Trichome f. Ii90 

 blpinnata. Distribution 696, 734 



Seed 489, f. J,89, 6SS 

 cemua 489, 789 

 Distribution 740 

 Trichome f. 1/90 

 dlscoldea 349-351, 789, f. 350 

 Distribution 691, 720, m. mO 

 Seed 489, f. J,89, 577 

 frondosa 351-352. 664, f. SH 



Distribution 691, 720, 740, m. 352 

 Seed 489, >. 1,89, ms, 6SS 

 leucanthus. Distribution 740 

 pilosa 697 

 Biennial Gaura 718 



Wormwood 367-368, 790 

 Biennials 648, 786, 862 

 Blgelovia nudata, Trichomas f. 1,82 

 Bigelow, Jacob 708, 711, 751, 773. 853 

 Bignonla Family 

 Distribution 723 



BiGNONIACBAB 



Distribution 723 

 Bindweed, Black 97-99, 663, 677, 789, 

 f. 98 

 Distribution 696, 698, 716, 829, 



m. 99 

 Seed 429, 528-531, f. Ji29, 526j 528, 529, 

 5H0, 531 

 European 248-250, 663, 665. 777, 787, 

 844, f. 21,9, 593, 59/, 

 Distribution 719, 727, 735, m. 21,9 

 Root system 651, f, 553 

 Seed 463, 563, /. m 

 Hedge 245-248, 848, f. 8^6 

 Distribution m. 2i6 



Small syn. Europeam. 

 Wild syn. Black 

 Birch sp. Distribution 673 

 Birds destroy seeds 629, f. 636 



distribute seeds 629, 636, 859, f. 

 687, 638 

 Blrd's-foot Trefoil 734 



Seed 815 

 Blrkett 824 



Birllngmair, R. H. XII. 657 

 Bisexual flowers 605 

 Bishop, J. J. 336-337 

 Bitter, Dr. 707, 713, 737, 738, 740 

 Bitter Dock, 78-79, 428, 595, 726, 774, 



789 

 Black Beggar-ticks syn. Beggar-ticks 

 Bindweed 97-99, 429, 526, 528-531, 



677, 696, 698, 716, 789, 829 

 Cherry, Wild 637 



Couch Grass syn. Fine Bent Grass 

 Henbane 277, 709, 736 

 Knapweed 664, 725 

 Medic 190-191, 453, 546-549, 688, 718, 



725, 728, 729, 734, 761 

 Mustard 142, 157-159, 445-446, 541- 

 543, 605, 696, 701, 717, 725, 776, 

 788, 810, 811, 814 

 Nightshade 281-283, 471-472, 568- 

 569, 625, 630, 645, 687, 696, 697, 

 720, 736, 777, 790 

 Blackberry, California 175, 694, 703 



Distribution 693 

 Black-eyed Susan 339-340, 689, 787, f. 

 339 

 Distribution m. Slfi 

 Root system 645 

 Seed 486, f. Jfi6 

 Bladder Campion 436, 716, f. m 



Ketmia syn. Shoo-fVy 

 Blade 591, 592, 594, f. 593 

 Blankinshlp, J. W. 838, 853 

 Blatchley, W. S. XIII, 824, 838 

 Blazing-star,. Seed 478, f, 1,79 

 Bleakley, J. L. HI 

 Bute, Coast, Distribution 746 

 Bloody Dock 716 

 Blooming time of plants 786-790 

 Blue Field Morning Glory 243-245 

 Grass 6, 8, 58. 657, 658, 659 

 Distribution 695. 785 

 Sefds 830, 832, 857 

 Canada 811-812, f. 638-639 

 Kentucky 418, 715, 810, 811, 812, 



f. 639 

 Tsxfls f 659 

 Lettuce 402-403. 404, 633, 788 

 Sage 277-279. 759 



Vervain 263-264, 469, 689, 690, 719, 

 777, 789 

 Bluebell Family 



Distribution 724 

 Blue-stem 688, 785, f. 689 

 Blue-weed 256, 719 

 Blumer, W. F. 749 

 Bogue. E. E. 838 

 B8hmer. G. R. 838 

 Bolivia, Weeds of 693 

 Bolley, H. L. XII, XIII. 766, 824, 825, 



826. 834, 839, 847. 860 

 Boneset 778, f. 313 

 False 



Seed 478, 1. 1,19 

 Boom. J. H. 74S 

 Boot-jack syn. Beggar-ticks 

 Boot-lack. Tall 349-351, f. 350 

 Distribution m. 350 

 Seed 575-576, f. 577 • 

 Borage 256. f. 608 

 Family 256-263 



Distribution 723, 841 

 Seed 466-468, 564-566 

 sp. 711 



