892 



INDEX 



Thumb 93-95, 664. 665, 736, 788, f. 91, 

 Chemical composition 677 

 Distribution 691, 716, m. 95 

 Seed 430, 527, f. iSO. SS6 

 Lambert 740 



Lamb's Quarters 107-109, 594, 658, 659, 

 660, 676, 697, 788, f. 108, 695 

 Chemical composition 107, 109 

 Distribution 687, 691, 696, 716, 



725, 729, m. 109 

 Seed 432, 532, f. JiSS, 5SSj 6SS, 076 



Western, Seed /. i32 

 Lamella 866 

 Lamina 866 

 Lamium album, distribution 727 



amplexicaule, distribution 719, 723, 

 727 



sp. 736 

 Lamson-Scribner, F. 842 

 Lance-leaved Ragweed 483 



Salvia 277, 278, 279, 759 

 Langrethal, C. B. 842 

 Lappa syn. Arctium 

 Lappa officinalis syn. Arctium lappa 

 Lappula echinata 260-262, f. 261 

 Distribution 719, m. S62 

 Seed 466, 565-566, f. m, 566 



virginiana 259-260, 788, f. 259 

 Seed 466, f. i67 

 Large Peppergrass 143, 144-145, 442, 

 539-540, 542, 717, 738, 787 



Ragvjeed syn. Greater Ragweed 



Spotted Spurge 660, 718 

 Large-bracted Vervain syn. Prostrate 



Vervain 

 Larger Knotweed syn. Erect Knotweed 



Mouse-ear Chickweed 124 

 Larkspur, Field, Seed 439, f. iS9 



Prairie 142, f. m 

 Seed 439, f. 1^9 

 Larsen, O. H. 849 

 Laschke, W. 858 



Late Ooldenrod syn. Smooth Goldenrod 

 Lathyrus aphaca f. 593 

 Laubert, R. 698, 849 

 Laurus canariensis. Distribution 693 

 Lavialle, P. 582 

 Lazenby, "W. R. 843, 857 

 Leaf, Alternate 594, f. 59S 



Arrangement 592-594 



Arrow-shE^ped f. S9J, 



Branching 594-597 



Cauline 592 



Cleft 596, f. 595 



Compound 596 



Crenate 596, f. 596 



Dentate 595, f. 595 



Entire 594 



Function 599-601 



Kidney-shaped f. 59/; 



Lobed 596, f. 581,, 59i 



Morphology 591-598 



Netted-veined 592 



Opposite 593, /. 593 



Ovate f. 595 



Parallel-veined 592 



Parts 591-592, f. S9S 



Pinnate f. 596 



Pinnatifid 596, f. 595 



Primary 591 



Protection 602-603 



Radical 592 



Reniform f. 591, 



Secondary 591 



Sessile 592, f. 592 



Serrate 596, f. 595 



Serrulate 596, f. 595 



Spear-shaped f. 59i 



Spiny-pointed f. 595 



Toothed 595 



Transpiration 601-602 



Triangular f. 59^ 



Veining 592 

 "Wavy 594, f. 595 

 Lee, L. V. 750 

 Leek 66 

 Leersia oryzoides f. 739 



Distribution 740 

 Lees, J. H. XII, 755 

 Legislation, Weed 794-808 

 Leguminosae 4, 180-199, 776, 819 

 Bibliography 585-586 

 Distribution 718, 724, 759-761 

 Seed 450-455, 545-554, f. 551 

 Leguminous weeds 667, 785 

 Lehmann, B. 713, 737, 858 

 Leonard, J. 766 



Leontodon autumnalis. Distribution 736 

 Leonurus cardiaca 276-277, 777, 788, 

 f. 270 

 Distribution 720, m. 277 

 Seed 470, f. pi 

 Lepachys pinnata 486-487, f. 101 



Distribution 737 

 Lepidium apetalum 146-147, 787, f. US 

 Distribution 692, 717, 734, 741, m. 



11,7 

 Seed 441, 540, f. m, 51,1, 688 

 Sativum 441, f. il,l 

 sp. f. 598 

 virglnicum 144-145, 787, f. US 



Distribution 717, 738, 844, m. US 

 Seed 442, 539-540, f. m, 5i2 

 Leptochloa mucronata. Distribution 



723 

 Leptome f. S9S 

 Lesage, P. 829 



Lespedeza capitata. Seed 545, 552, f. iSi 

 sp. 850 

 stuvel 552 

 Lettuce 307, 633 



Blue 402-403, 788, /. JiOS, 633 



Distribution 729, m. i04 

 Canadian syn. Wild Lettuce 

 False, Seed 500, f. 500 

 Prickly 396-399, 596, 645, 664, 790. 

 819, 826, 838, 840, f. 398 

 Distribution 721, 725. 747, 758, 



840, m. 398 

 Root system 645 

 Seed 500-501, f. 501 

 Prickly (integrata) 396-399, f. S97 

 Distribution 721, 747, m. 398 

 Seed 500, f. 501 

 Wild 399-401, 780, 788, 807. f. IfiO, 

 m, 595 

 Distribution 838, 810, 846, m. 398 

 Root system 645 

 Seed 500, f. 501 

 Leunis, Johannes 754 

 Liatris gracilis 478 



punctata, Seed 478, f. i79 

 Trlchomes f. P9 

 Light, Bffect on germination 829 

 Ligule 867 

 Lii.iACEAB 3, 66-67 



Distribution 715, 724 

 Lilicoya 693 

 Lily 6, 66 

 Easter f. 698 

 Family 66-67 



Distribution 724 

 of-the-valley 66 

 Philadelphia 689 

 Lilium philadelphlcum 689 

 Limy Soils, Weeds of 819 

 LiNACBAE, Distribution 724 



Seed 456, 554-555 

 Linaria cymbalaria. Distribution 727 

 vulgaris 292-294, 808, f. 293 



Distribution 696, 712, 720, 727, 



788, m. 294 

 Seed 473, f. pS 

 Linnaeus, see Linne 

 Llnne, C. V. 744, 748, 826 



