INDEX 



921 



Bphenophol^ft. 138 



nitida 138 



obtusata 138 



pallens 138 



palustris 139 



Spice Bush 414 



Spider-flower 439 



Spiderwort 264 



Family 264 



Spieaia 517 



campestris 617 



Larnberti 518 



splendens 518 



Spigelia 653 



marilandica 653 



Spike Grass 163 



Rush 180 



Spiked Zjoosestrife 



692 



Spikenard 606 



False 291 



Spilanthes 833 



americana 833 



repena 833 



Spindle Tree 566 



European 556 



Spiny-leaved Sow 



Thistle 866 



Spiraea 456 



Aruncus 457 



betulifoiia 456 



corymbosa 456 



japonica 466 



latifolia 466 



lobaia 484 



opiUifolia 466 



prunifolia 466 



ealicifolia 466 



Borbifolia 457 



tomeutosa 456 



Ulmaria 485 



virginiana 456 



Spiranthes 313 



Beckii 313 



cernua 314 



decipiens 316 



gracilis 313 

 gracilis X vemalis 



314 



intermedia 314 



latifolia 314 



lucida 314 



odorata 314 



ovalis 314 



• praecox 314 

 Romanzoffiana 



314 



8impli:x 313 



vemalis 313 



Spirodela 259 



polyrhyza 259 



Spleenwort 38 



Spoon-v/ood 633 



Sporobolus 129 



asper 130 



brevifolius 130 



canovirens 130 



clandestinus 130 



compressus 131 

 cryptandrus 131 

 cuBpidatus 130 



depauperatus 130 

 ejuncidus 131 



gracilis 131 



heterolepis 131 

 indicus 131 



junceus 131 



longifolius 130 



neglectus 131 



Richardsonia 130 

 serotinus 132 



Torreyanus 131 

 uniflorus 131 



vaginiflorus 130 

 virginicus 131 



Spotted Cowbane 



614 



Medick 510 



Touch-me-not 560 



Wintergreen 628 



Sprangle*top 158 



Spreading Dogbane 



662 



Globeflower 404 



Spring Beauty 388 



Cress 435 



Vetch 526 



Spruce 66 



Black 65 



Bog 65 



Cat 65 



Norway 65 



Red 65 



White 66 



Spurge 546 



Caper 549 



Cypress 549 



Family 640 



Flowering 547 



Nettle 541 



Petty 549 



Seaside 545" 



Spurred Gentian 659 



Spurrey 379 



Corn 379 



Sand 378 



Squash 764, 765 



Crookneck 765 



Squashberry 759 



Squaw Huckleberry 



639 



Squaw-root 739 



Squaw-weed 862 



Squirrel Corn 417 



Squirrel-tail Grass 



167 

 Stachys 701 



atnbigua 701 



annua , 701 



arenicola 702 



arvensis 701 



aspera 701, 702 

 cordata 702 



hyssopifolia 701 

 latidens 702 



Nuttallii 702 



palustris 702 



salvioides 702 



tenuifolia 701 



Staff Tree 667 



Family 666 



Stagger-bush 635 



Staghorn Sumach 



552 



Standing Cypreas 



67S 



Staphylea 667 



trifolia 557 



Staphyleaceae 557 



Star Flower 646 



Grass 294,- 299 

 of Bethlehem 289 

 Thistle 859, 860 



Starry Campion 386 



Starwort 381, 799 

 Water 550 



Statice 643 



lAmonium 643 



Steeple Bush 456 



Steinchisma hiand 



117 



Steironema 646 



ciliatum 646 



intermedium 646 

 lanceolatum 646 

 longifolium 646 

 quadriflorum 646 

 radicans 646 



tonsum 646 



Stellaria 381 



aquatica 383 



borealis 381 



crassifoUa 382 



fontinalis 382 



glauca 382 



graminea 382 



Holostea 382 



humifusa 382 



longifolia 382 



longipes 382 



media 382 



neglecta 382 



pubera 382 



uliginosa 381 



Stemless Lady's 



SUpper 307 



Stenanthium 284 

 angustifolium 284 

 gramineimi 284 

 robustum 284 



Stenophragma 



Thalianum 430 



Stenophyllus 186 

 capillaris 186 



Stenosiphon 602 



linifoUus 602 



virgatus 602 



Stewartia 570 



Malachodendron 



570 

 pentagyna 670 

 virginica 570 



Stick Leaf 588 



Stickseed 681 



Stick-tight 840. 841 



Stiff Cornel 625 



Water Crowfoot 



394 



Stillingia 544 



sylvatica 544 



Stinging Nettle 348 



Stink Grass 160 



Stinking Clover 439 



WilUe 853 



Stipa 123 



aveuacea 123 



canadensis 123 



comata 124 



Macounii 123 



Richardsoni 123 



spartea 124 



viridula 123 



Stone Clover 609 



Stonecrop 442 



Ditch 442 



Mossy 443 



Stone-root 711 



Storax 660 



Family 649 



Storksbill 536 



Stromonium 717 



Strawberry 479 



Barren 480 



Blite 366 



Bush 656 



Indian 480 



Tomato 715 



Streptopus 292 



amplexifoUus 292 



longipes 292 



roseus 292 



Striped Maple 658 



Strophostyles 528 



angvXosa 629 



helvola 528 



paucifiora 529 



peduncularis 529 



umbellata 529 



Stylophorum 415 



diphyllum 415 



Stylosanthes 525 



biflora 525 



elaiior 525 



riparia 526 



Styracaceae 649 



Styrax 650 



americana 650 



grandifolia 650 



pulverulenta 650 



Suaeda 369 



americana 370 



depreasa 370 



linearis 370 



maritima 370 



Richii 370 



Subularia 426 



aquatica 426 



Succiaa 763 



auatralis 764 



prateusia 764 



Succory S61J 



Gum '^"^il 



