INDEX 



ABBREVIATIONS. 

 f=figrure. 

 in=inap. 

 sp=species. 

 syn=synonyin. 



Abbey. W. L. 766 

 Absinth 307 



Abutilon theophrasti (,syn. avicennae) 

 215-218, 718, 790, 796, 799. f. gl6, 

 nt, IIS 



Distribution 734, 762, m. 216 



Seed 5S7-558, f. 559 

 Acacia, False 



Distribution 718 

 Acaena ovina 849 

 Acalypha virginica 205-207, 788, f. 206 



Distribution 718, m. 207 



Seed 457, f. isr 

 Acer saccharinum. Seed f. 63i 

 Achene 862 



Achillea millefolium 358-360, 778, 787, 

 f. SS9, 7il 



Chemical composition 674 



Distribution 698, 720, 736, 740, m. 

 S59 



Seed 491, f. m 

 Acidia heraclei 677 



Acloque, A. 731, 737, 738, 740, 754, 837 

 Acnida tamariscina 118 



tuberculata 118-119, 789, f. 118 



Distribution in. 119 



Seed 435, f. iS5 

 tuberculata v. prostrata 



Distribution 716 

 Adams, G. E. 846 

 Adaptation of plants 637 

 Aderhold, R. 846 

 Adulterated seed 811-815, 827. S56. 857. 



858, 859. 860 

 Adulteration and Seeds Act 793 

 Adventive plants 696-697, 707 

 Aegopodium poda^raria 



Distribution 736 

 Aerial roots 862 

 Aethusa cynapium 663 



Distribution 736 

 Africa, Weeds, 722, 731, 732, 733, 734 

 African Colonies, South 



'Weed laivs 793 

 Agastache scrophulariaefolia 



Seed 567, f. i70, 567 

 Ageratum conyzoides 



Distribution 734 

 Agoseris cuspidata 502, f. 501 

 Agrimonia striata 



Distribution 734 

 Agropyron caninum 



Distribution 715 

 repens 53-58, 664, 774, 796, 799. f. Sh 

 775 



Chemical comoosition 57-58 



Distribution 715. 736, m. 55 



Root system 652, f. 6-',3 



Seed 421-423, 810, f. i;2. CSS 

 smithii 53 



Distribi'tio" vi. 56 



Seed 423, f. ^23 

 tenerum 



Distribution m. 56 



Seed f. r2 

 Agrostemma sithaEro 125-136, 789, 819, 

 f. 195, 100 



Distribution 699, 716, 735. 736, m. 

 lie 



Seed 436, 776, 810, 829, f. iS6, 688 



56 



Agrostis alba 667 

 Distribution 715 

 Seed 415, 811, 813, f. -in 

 canina 677 

 hyemalis 



Distribution 732 

 sp. 664 

 spica-venti 



Distribution 736 

 vulgaris 851 

 Agueweed 780 

 Aira caespitosa 667 



AIZOAGEAE 



Distribution 723 

 Alabama Flora 707-708, 722-723 

 Alberta weed legislation 793 

 Albugo Candida f. 681 

 Albumen 862 

 Alchemilla arvensis 664 

 Aleurone cells 524, 530, f. 523, 529 

 "fleck" 553 

 grains 862 



layer 510, 519, 549, 572, f. 518 

 Alfalfa 183, 852, f. 595 

 Dodder 



Seed 810 

 Rocket 159 



Seed 810, 811, 812, 828. 831, 833, 855 

 Impurities 712, 833. 834, 836, 839, 

 856, 857, 858. 859 

 Alfilaria 



Distribution 725 

 Seed 457, f. .(57 

 Alice, G. 847 

 Alien plants 697-698 

 Alkali soils. Weeds 820 

 Alkanet 256 



Allitim eanadense 67, 623, 787, f. 68 

 Distribution 67, 68 

 carinata 



Distribution 839 

 vineale 



Distribution 715 

 Almond 175 



Alopecurus agrestis 664, 665 

 Distribution 736 

 geniculatus f. 7SB 



Distribution 715, 732-740 

 pratensis 



Distribution 715 

 Alpers 713, 738, 740 

 Alsike Clover 



Seed 460, 810. 812. 830, f. .',51, 6S8 

 Impurities f. 638 

 Alternate flowers 862 



leaves 594. 862 

 Alyssum, Hoary 147-149, f. m 

 Distribution 717, ni. liS 

 Sweet 142 

 Amaranth 



Family 113-119 

 Distribution 723 

 Seed 434-435 

 Purple 697 



Rovoh syn. Rough Pigweed 

 sp. f. 636 

 Spiny 697 



Distribution 723 

 Svreading syn. Prostrate Pigweed 

 Tumbling syn. Tumbling Pigweed 



