906 



INDEX 



Knapweed syn. Knapweed 

 Nightshade syn. Buffalo Bur 

 Sow Thistle 494 

 Spiny-leaved 



Sow Thistle syn. Sow Thisth 

 Spiraea 175 



Distribution 693 

 Spleenwort 5 

 Spooner, A. 766 

 Sporangium 616, 870 

 Spore 870 



Sporobolus neglectus 3S-39, 790, f. 39 

 Distribution 715, to. 39 

 vaginiflorus 37-3S, f. 37 

 Distribution 715, to. 38 

 Spotted Cowbane 596 



Spurge 207-208, 45S, 556-557, 657, 



718. 7SS 

 Large 660, 718 

 Spraying S47, 818. 849, 850, 851, 852 

 Spreading Amaranth syn. Prostrate 

 Pigweed 

 Dogbane 235, 237, 719, 7NS 

 Pigweed syn. Prostrate Pigweed 

 Spring Beauty 134 

 Spring grain field, Weeds of 661 

 Sprouting Crab Grass 14-15, 410, 691, 



714 

 Spruce 3, 6 



Spurge, Creeping 20S-209, f. 209 

 Distribution to. 809 

 Seed 458. 5 5 7, /'. ',:,!. 557 

 Cypress 212-213. f. 212, 735 

 Distribution 718, 736, m: 21S 

 Seed 557, f. 557 

 Family 205-213 

 Distribution 72 1 

 Seed 457-458, 556-557 

 Flowering (eorol'ata t 210. f. 211 

 Distribution 718, 690 

 Seed 458, 596, f. W, 597 

 Flowering (maeulata) syn. creeping 



spurge 

 Flowering (preslii) syn. Spotted 



spurge 

 Milk sun. Creeping Spurge 

 Prostrate si in. Creeping Spwae 

 pp. 658, 659. 660, 664.' 786. 7*7. 811 

 Spotterl 207-208, 657. 718, 788, f. 208 

 Distribution in. 208 

 Seed 458, 556-557, f. I'S 

 Large 660, 718 

 Upright syn. Spotted Spurge 

 Yellow sun. Cypress Spurge 

 Spurrey 120, 664, 665. 677 



Chemical Composition 674 

 Distribution 723 

 Corn, see Corn Spurrey 

 Squash 6 



Squaw-weed f. 623 

 Squires 766 



Squirrel-tail Grass 58-61, 788, f. 59. 60 

 Chemical Composition 60-61 

 Distribution 691, 693, 715, 729, 730, 



to. 60 

 Puccinia on 680, f. 678, 679 

 Seed f. ISO 

 Squirrel-tail Grass (H. murinum) 677, 

 698 

 Small 787 

 sp. 729 

 Stachys palustris 7 89 

 Distribution 743 

 Stadler 583 



Stamens 609-610, 615-617, f. 609. 615 

 Diadelphous 609, f. 610 

 Epipetalous 609 

 Monadelphous 609. f. Gin 

 Staminate flowers 605, f. 606, 607 

 Star Thistle syn. Knapweed 

 Starch cell, see Cell. Starch 

 parenchyma f. 518 



Stebler, F. G. 828, 852 

 Stellaria media 121-122, 663, 776, f. 121 

 Distribution 696, 716, 725, to. 122 

 Seed 435, 810, f. 1,35 

 Stem Eel worm 677 

 Stemless Lady Slipper 702 



Loco Weed syn. Purple Loco weed 

 Stems, Underground 651-653, f. 651, 65Z 

 Stereome f. 599 

 Sterile flowers f. 607 

 Stevens 760 

 Stevens 824 

 Stewart, F. C. 748, 756, 760, 767, 833, 



S34, S59 

 Stokes 766 

 Stickseed 260-262, f. 261 



Distribution 71!'. m. 262 

 Seed 466, 565-566, f. ',67. 565 

 Stick-tight sun. Beggar-ticks 



Small 4 89, f. 489 

 Stickweed ISO, f. i*i 



Distribution 717, m. 1SJ 

 Seed 545, 829, f. 51,5 

 Stiff Ooldenrod syn. Yellow-flowered 

 Stigma 616, 871 

 Papillary f. 616 

 Petal-like f. 617 

 Shield-shaped f. 61S 

 Stinging Nettle (U. dioica) 667 



(U. gracilis) 69-70, 425, 602, 003, 

 652, 708, 715, 788 

 Stink Grass syn. Candy Grass 

 Stinking Clover syn. Rocky Mountain 

 Bee-plant 

 Willie syn. Ragwort 

 Stinkweed 171-173, 793, f. 172, 173 

 Distribution 693, 717, in. J7? 

 California 840 

 Also sec Pennycress 

 Stipa 636 . 



spartea 689, 790, f. 666, 667 

 sp. Distribution 701 

 Stipule 591, 592, 871, /'. 591, 59S 

 Stolon 871 



Stoma 597. 871, f. Vis 

 Stone, A. L. 850. 852, 861 

 Stone, G. E. 833, 851, 852, 859 

 Stone Clover 7 IS, 760 

 Stonecrop, Distribution 695 

 Storksbill, Distribution 713, 725, 729, 

 734 

 Seed 457, f. 457 

 Stramonium, Purple syn. Jimson Weed 

 Strap-shaped flowers f. 611 

 Strawberry 175 



False 175-176, f. 176 

 Distribution m. 176 

 Strophostyles helvola 199-200, 790, f. 

 200 

 Distribution 718, in. 200 

 Seed 455, f. 1,55 

 Stubbleberry syn. Black Night-shade 

 Studley 766 

 Sturtevant, E. L. 84 6 

 Stutzer, A. 673, 837 

 Style 617, 871 

 Successful Farming 826 

 Succory syn. Chicory 

 Sugar 600 



Cane 600 

 Suksdorf 751 

 Sumach 213 



Family 213, 214, 215 

 Rummers 746 

 Sunflower 



Annual syn. Common Sunflower 

 Common 340-342, 596, 601, 789, f. 31,1, 

 31,2 

 Distribution 693, 720, 730, 756, 



in. 31,1 

 Seed 487, 575, f. 1,87, 596 

 Trichomes f. 488 



