No. 14.] 



FLOWERING PLANTS AND FERNS. 



Oenothera 



var. cruciata 292 

 " grandiAora 293 

 " Oakesiana 292 



cruciata 292 



fruticosa 293 

 var. hirsuta 293 

 " humifusa 293 

 '■ linearis 293 



grandiflora 293 



laciniata 293, 434 



linearis 293 

 var. Eamesii 293 



longipedicellata 294 



Oakesiana 292 



pratensis 294 



pumila 293 



sinuata 293 

 Oil Nut 144 

 Okra 280 

 Old Field Birch 147 



Man 401 



Woman 401 

 Old-fashioned Cherry 245 

 Old-maid's Pink 180 

 Old-witch Grass 51 

 Oleaceae 317, 438, 440 

 Olive Family 317 

 Onagra 



biennis 292 

 var. grandiflora 293 



cruciata 292 



Oakesiana 292 

 Onagraceae 291, 438, 440 

 One-flowered Cancer-root 359 



Pyrola 306 



Wintergreen 306 

 Onion 119 



Wild 119 

 Onoclea 25 



sensihilis 25 

 var. obtusilobata 25 



Struthiopteris 25 

 Onopordum 407 



Acanthium 407 

 Onosmodium 330 



virginianum 330 



34 



Ophioglossaceae 27, 436 

 Ophioglossum 27 



vulgatum 27 

 Opium Poppy 197 

 Opulaster 



opulifolius 220 

 Opuntia 289 



Opuntia 289 



Rafinesquii 427 



vulgaris 289 

 Orach 167 



Beach 168 



Spreading 167 

 Orange 



Mock 154, 217 



Osage 154 

 Orange Grass 282 



Hawkweed 414 

 Orange-flower Tree 217 

 Orange-root 193 

 Orchard Grass 72 

 Orchidaceae 129, 436 

 Orchis 130 



rotundifolia 42$ 



spectabilis 130 

 Orchis 



Fen 136 



Fringed 130 



Large Purple Fringed 132 

 " Round-leaved 131 



Long-bracted 130 



Ragged 132 



" Fringed 132 



Rein 130 



Showy 130 



Small Green Wood 131 

 " Pale Green 130 



Smaller Purple Fringed 132 



Tall Leafy Green 130 

 " White Bog 130 



White Fringed 131 



Yellow Fringed 131 

 Orchis Family 129 

 Origanum 340 



vulgare 340 

 Ornithogalum 121 



umbellatum 121 



