Index to Host Plants. 
PHENOMAMS ooesesceccscsesesseeenses 152 
Phaseolus diversifolius ......... 162 
helvolus .....c.csseseeeeee a» 162 
Vulgaris esses secacesewecsssnnaves 162 
Phlox pilosa.........ccccseeeeceeeeees 235 
Aivaricata wc. 192 
Phragmites communis ........... 199 
Physalis viscosa .......:-.sssscereee 235 
Pints sevasecncisasscncvenssansemacsaress 
Pistacea .... 
Plantago Virginica..............06 233 
Podophyllum peltatum ......... 173 
Polemonium reptans 
Polygonum acre .......000.ecee ee 
aviculare, var. erectum..... 164 
amphibium ...............:066 
Pennsylvanicum. 
TAMOSISSIMUM ........0see00s 
Virginianum ........-...ce 
POMEL s.sevissccamsavsncssaeeeers 
Populus monilifera ............... 
tremuloides .............seeeee 
Potentilla ..........cccceseeees 
Canadensis ............. 
Proserpinaca palustris 179 
Prunus Americana...........177, 178 
BELOCINA ......ceses cceeeeeee 177, 178 
Virginiana, .........ceccceesees 177 
Psoralea floribunda..............+ 226 
Onobrychis..........02csseere 225 
Ptelea trifoliata.............. deesiee 225 
Pyenanthemum lanceolatum.. 190 
Vinifolium ...........ccceeeeee eee 190 
pilosum........ 190 
Pyrus coronaria 240 
Ranunculus abortivus............ 222 
TOPENS ...eccecesesseeteceeeeseees 173 
Red Cedar.....cccccseceserrerert 145, 154 
RWS ss aiverstienapieaseashelensentanevere 159 
toxicodendron ............4 158 
Ribes rotundifolium............. 227 
ROSA: sisessesse ones Hed aoe 204, 207 
RUDUS -savacoadiacacdsecanmedevevansene 204 
251 
Rubus — (continued, ): 
StVIQOSUS ...sccccceeseeeenseeeees 207 
villosus........ 178, 208, 220, 221 
Rudbeckia laciniata...... sieeaiaues 163 
Ruellia cilioga ........ccccssssseseees 189 
strepens 
BY Goss cians dacsisaisane¥s vei ad oeataatavess 
Sambucus canadensis 
Salix: onncecwcccescieereavieey 
COYOALA....0cscseccecescees se 
longifolia .............0066 sess 214 
Scirpus atrovirens ..............08 197 
fluviatilis .........cccsceeeeceees 169 
VALIAUS. sscisvacecesesevareanveres 196 
Sedges 
Senecio 
Seymeria macrophylla .... 
Sida spinosa veee 175 
Silphium siscccisscassesseccrsreeves 231 
integrifolium .....184, 217, 231 
laciniatum .........:ceeceeeee 231 
perfoliatum 184 
terebinthinaceum 184, 217, 231 
SHAUACING casedeesissiescis saceeonses 
racemosa .... 
stellata 0... 
Smilax herbacea. 
hispida ....csscaseassssvescens 
Solidago 
altissima .. 
gigantea ......seseeee eee: 
latifolia ......ccce seers 
VIGIGA ....cseceeerssesseeceeeeseee 
ulmifolia 
Sonchus arvensis .........-..e000 216 
Spartina cynosuroides...... 169, 199 
Sparganium eurycarpum........ 167 
Sunflower ........eecsereacees ere 151. 
Taraxacum 
dens-leonis .........0:ccseseeeee 
Tephrosia Virginiana ............ 
Tricuspis seslerioides.............. 
Trillium recurvatum ... 
TIrtica ......scccerccstenceseresensenees 
bee eeree cer seetenccnceees 
