544 



INDEX. 



Page. 



Dielt/tra i. 45 



Digitaria filiformis . ii. 424 



glabra 423 



humifusa 423 



Ischamum 423 



sanguinalis 423 



Dilepyrum arislosum . ii. 443 

 minutiflorum . . 435 



DioscoREA ii. 292 



paniculata 293 



villosa 293 



DIOSCOREACE.^ . ii. 292 



DiosPYRHS ii. 6 



Virginiana 6 



DiPLACHNE ii. 472 



fascicularis 472 



Diplasium thelypteroides, 



ii. 493 



Diplocera barbata ii. 455 



DiPLOPAPPus i. 350 



albus .. 349 



amygdalinus . 352 



cornifolius 351 



linariifolius 351 



Marianus 368 



rigidus 351 



umbellatus 352 



Diplostephium acuminatum, 



i. 348 



cornifolium 351 



linariifolium -. 351 



umbellatum 352 



DIPSACE^ i. 320 



DiPSAcus i. 320 



sylvestris 320 



DiRCA ii. 163 



palustris - 163 



DiscoPLEURA i. 265 



capillacea 266 



Ditch-grass ii. 252 



Dittany ii. 65 



Dock ii. 154 



Dodder ii. 98 



Dodder Tribe ii. 98 



Dodingeria i. 349 



Paje. 



Dodingeria cornifolia. i. 351 

 plarmicoides . . 349 



umbel/ata 352 



Dogbane Tribe ii. 116 



Dogsbane ii. 116 



Dogstail Grass ii. 441 



Dogstooth Violet ii. 306 



Dogwood i. 288 



Dogwood Tribe i. 288 



Dolichos angulosus .. i. 160 



polystachya 160 



DooDiA ii. 489 



Virginica 489 



Doorweed ii. 152 



Draba i. 62 



arabiscens 62 



Caroliniana 62 



hispidula 62 



ineana 62 



verna 63 



Draccma borealis ii. 300 



Dracocephalum ii. 75 



denticulatum .. 76 



parviflorum 75 



Virginianum. . 76 

 Draconiium fatidum . ii. 243 



Dragon' s-head ii. 75 



Drepanospron i. 160 



Dropseed Grass ii. 435 



Drosera i. 81 



Americana 82 



filiformis 82 



foliosa 82 



intermedia 82 



longifolia 82 



rotundifolia 81 



tenuifolia 82 



DROSERACE^... i. 81 



Duckmeat ii. 245 



Duckweed ii 245 



Dulichium ii. 337 



Canadense 337 



spatliaceura 337 



Dutch Myrtle ii. 196 



Dutchmaa's Breeches . i. 45 



Pag«. 



Dwarf Dandelion i. 309 



Dwarf Laurel i. 441 



Dwarf Risk i. 315 



EBENACEiE ii. 5 



Ebony Tribe ii. 5 



Echinochloa ii. 424 



ECHINOCYSTIS i. 250 



lobata 250 



EcHiNosPERMUM ii. 90 



Lappula 90 



Virginicum 90 



EcHiuM ii. 84 



vulgare 84 



Eel-grass ii. 251, 265 



Eglantine i, 220 



ELATINACEjE... i. 91 



Elatine i. 91 



Americana 91 



minima 91 



Elder i. 302 



ELEAGNACE^ .. ii. 164 



Elecampane i. 370 



Eleocharis ii. 346 



acicularis 349 



caspitosa, 351 



intermedia 347 



melanocarpa .. 520 



obtusa 348 



olivacea 347 



palustris 346 



planifolia 351 



pygraasa 350 



rostellata 347 



tenuis 349 



tuberculosa 348 



Eleusine ii. 447 



Indica 447 



Elm ii. 165 



Elm Tribe ii. 165 



Elodea i. 90 



campanulata . . 90 



Canadensis ii. 264 



Drummondii . i. 90 



Fraseri... 90 



Virginica 90 



