INDEX 



911 



Opuntia 

 cespitosa 

 fragilis 

 humifusa 

 mesacantha 



589 



589 

 589 

 589 

 589 



nissourien^ 589 



oolyacantha 589 



dafinesquii 589 



.oilgaris 589 



>rach 368 



Jrange Grass 575 



Hawkweed 872 



Mock 449 



Osage 347 



Orange-root 408 



Orchard Grass 154 



Orchidaceae 304 



Orchis 307 



Crane Fly 319 



Family 304 



Fringed 308 



Ragged Fringed 



310 

 Rein 308 



rotundifolia 307 

 Showy 307 



apectabilis 307 



White Fringed 310 

 Yellow Fringed 



310 



Origanum 706 



vulgare 706 



Ornithogalum 289 



nutans 290 



umbellatum 289 



Orobanxhaceae 739 



Orobanche 740 



fasciculata 740 



ludoviciana 740 



minor 740 



purpurea 740 



ramosa 740 



uniflora 740 



Orontium 258 



aquaticum 258 



Orpine 442 



Family 441 



Garden 443 



Orthocarpus 732 



luteus 732 



Oryzopsis 122 



asperifolia 123 



canadensis 122 



juncea 1 22 



melanocarpa 123 



pungens 122 



racemosa 123 



Osage Orange 347 



Osier 320, 327 



Osmorhiza 612 



brevistylis 612 



Claytoni 612 



divaricata 613 



longistylis 612 



obtusa 613 



Osmunda 46 



cinnamomea 47 



Claytoniana 46 



r^alis 46 



spectabilis 46 



Osmundaceae 46 



Ostrich Fern 45 



Ostrya 333 



virginiana 334 



virginica 334 



Oswego Tea 703 



Over-cup Oak 



339, 340 



Oxalidaceae 532 



Oxalis 532 



Acetosella 533 



Brittonae 533 



Bushii 534 



corniculata 534 



cymosa 534 



filipes 533 



grandis 533 



Priceae 533 



repens 534 



rufa 534 

 stricta 533, 534 



vlolacea 533 



Ox-eye 829 



Daisy 847 



Sea 833 



Ox-tongue 864 



Oxybaphvis 375 



albidus 375 



angiistifoliics 375 



floribundus 375 



hirsutus 375 



linearis 375 



nyctagrnetis 375 



ovatus 375 



Oxycoccus erythro- 



carpxis 641 



macrocarpiLS 641 



Oxycoccus 641 



palustris 641 



Oxydendrum 636 



arboreum 636 



Oxygr aphis Cymba- 



laria 394 



Ox>-poli3 621 



filiformis 622 



rigidior 622 



Oxyria 354 



digj-na 354 



Oxytropis 517 



campestris 517 



Lamberti 517 



splendens 518 



Oyster-plant 864 



Pachistima _556 



Canbjd 557 



Pachysandra 550 



procumbens 551 



Paepalanthits fiavi- 



dus 261 



Painted Cup 732 



Cup, Scarlet 732 



Leaf 548 



Trillium 294 



Paint-brush, Devil's 

 872 



Pale Corydalis 418 

 Dock 356 



Indian Plantain 



852 

 Laurel 633 



Touch-me-not 560 



Panax 606 



ginseng 606 



quinquefoUum 606 

 tri folium 606 



Panic Grass 100 



Panicularia 158 



americana 159 



brachyphylla 159 



Panicum 100 



aciculare 106 



aculeatum 116 



Addisonii 112 



agrostoides 104 

 albo-margina turn 



113 

 amaroides 104 



amarum 104 



anceps 105 



angustifolium 106 

 annulum 108 



Ashei 113 



atlanticum 111 



auburne 111 



autumnale 96 



barbulatum 



107, 108 

 Bicknellii 107 



boreale 108 



Boscii 116 



Brittoni 113 



Bushii 107 



capillare 103 



clandestinum 116 

 Clutei 108 



cognatum 96 



colonum 118 



columbianum 112 

 Commonsianum 



112 

 commutatum 



112, 113 

 condensum 105 

 consanguineum 



106 

 crusgalli 117 



Curtisii 103 



decoloratum 116 

 depauperatum 105 

 dichotomiflorum 



104 

 dichotomum 107 

 digitarioides 103 

 Eatoni 109 



ensifolium 113 



filiculme 110 



filiforme 95 



filirameum 107 



flexile 103 



Gattingeri 103 



ffibhum 117 



glabrum 96 



haemacarpon 111 



hemitomum 103 

 hispidum 1 18 



huachucae 109 



impUcatum 109 

 lancearium 114 

 lanuginosum 



109, IIQ 

 latifoUum 117 



laxifiorum 106 



Leibergii 115 



leucothrix 109 



Lindheimeri 109 

 linear e 96 



linearifolium 106 

 longifolium 104 

 lucidum 107 



macrocarpon 117 

 mattamuskeetense 

 108 

 meridionale 1 10 

 microcarpon 



108, 113 

 miliaceum 104 



minimum 103 



minus 103 



mutabile 114 



Nashianum, 114 

 nem,opanthum 107 

 neuranthum, 107 

 nitidum 109 



oUgosanthes 114 

 oricola 110 



ovale 111, 112 



patulum 114 



pa ucifiorum, 115 

 paucipilum, 109 

 perlongum 105 



philadelphicum 



103 

 pilosum 110 



polyanthes 



108, 113 

 praecocius 111 



proliferum 104 



psammophilum 112 

 pvbescens 109 



pubifolium 117 



RaveneUi 115 



Tostratum. 105 



san^uinale 96 



scabriusculum 116 

 scoparioides 111 

 scoparium 115 



Scribnerianum 115 

 serotinum 96 



sphaerocarpon 113 

 .'Dretum 108 



stipitatum 105 



strjgosum 106 



subsimplex 113 



subvillosum 110 

 tennesseense IIC 

 tenue 113 



tsugetorum 112 

 unciphyllum. 



109, 110, 113 

 verrucosum 103 

 villosissimum 1 1 1 



