433] 



291 



References to the Flora are in brackets [ ] 



slender [91 



wood [91 



Dry hill plants [65 



Dryopteris [79]> [8° 



achrosticoides [So 



marginalis [79 



Duckweed 17, [110 



little [no 



Duckweed association. . . i 



Duckweed family [no 



Dulichium [100 



ariindinaceum [ 100 



spathaceum [100 



Dumortiera hirsuta 5 



Dutchman's breeches [142 



Dysodia [237 



chrysanthetnoides 64, [237 



Eatonia [95 



nitida [95 



obtusata [95 



Pennsylvanica. 26, 31, [95 



major [95 



Ebenaceae ... [191 



Ebenales [191 



Ebony FAMILY [191 



Ebony fern [80 



Echinacea [233 



purpurea [233 



Echinochloa [86 



Crus-gaUi [86 



Echinocystis [216 



lobata [216 



Bchinospermum ['97 



Virginicum [ 197 



Eclipta [233 



alba 23, [233 



Ecology 



Eglantine [155 



Elder [214 



Elderberry, black 30, [214 



Elecampane [230 



Eleocharis, see Heleocharis 



Elephantopus [223 



Carolinianus 27, [223 



Elephant' s-foot [223 



Carolina [223 



Eleusine 7°> [94 



Indica : 71, [94 



Ellisia [196 



Nyctelea 35, 46, [196 



Elm 2, 48, [125 



American S, [ 1 25 



rock [125 



slippery [125 



water [125 



Elm FAMILY [125 



Elm subassociation [48 



Elodea [84] 



minor 18, [84] 



Elymus 39, 46, 47, 57, [100] 



Canadensis 26, 58, [ 100] 



glaucif alius.. [ 100] 



glaucifolius 26, 58, [100] 



striatus 26, 58, [ 100] 



villosus [100] 



Virginicus 26, 58, [100] 



Enchanter's nightshade.. . . . [184] 



Enslenia [194] 



albida [194] 



Epilobium [182] 



adenocaulon 29, [182] 



Equisetaceae [82] 



EqUISETALES [82] 



Equisetum [82] 



arvense 23, 26, [82] 



hiemale 23, 24, 26, [82] 



pratense 29, [82] 



variegatum 26, [82] 



Eragrostis 68, 70, 71, [94] 



capillaris [94] 



Frankii [94] 



hypnoides 22, [95] 



major [94] 



minor [94] 



pectinacea 55, [94] 



spectabilis [95] 



pilosa [94] 



Purshii [94] 



reptans [9S] 



ieniiis [95] 



trichodes 64, [95] 



Erechthites [238] 



hieracifolia 50, [238] 



Erechtites, see Erechthites 



Ericaceae 78, [ 189] 



Ericales [189] 



Erigenia [185] 



bulbosa 3Si 46, [185] 



Erigeron [229] 



annuus 55, 67, 69, [229] 



bellidifolius [229] 



Canadensis 55, 70, [229] 



divaricatus . . 64, [229] 



Philadelphicus. .35, 57, 58, [229] 



pulchellus 43, 47, [229] 



ramosus ..... .55, 67, 69, [229] 



strigosus [229] 



Eriophorum [102] 



lineatum 20, 26, 29, 62, [102] 



Erythronium [114] 



albidum S.?; 46, [114] 



Americanum [114] 



mesaechoreum [n2] 



Escapes 66, 71, [74] 



