INDEX. 



581 



PAGE. 



Arnica, L 260 



alpina, Olin 261,554 



amplexicaulis, Nutt 261 



angwtifolia, Vahl 261 



Chamissonis, Less 261 , 553 



Chamismnis, T. & G 261 



cordifoHa, Hook 260, 553 



Doronicum, Willd 267 



foliosa, Nutt 261,554 



latifplia, Bong 261, 553 



maritima, L 267 



maritima, Willd 267 



Menziexii, Hook 261 



mollis, Hook 261 



montana, Hook 261 



montana, /3. alpina, L 20 1 



obtusifolia, Less 262 



Sachalinensis, Gr. 262 



TJnalaschkensis, Less 262 



Artemisia, L 255 



Absinthium, L 259 



arctica, Less 258 



arctica, Bess 258 



biennis, Willd 259 



borealis, Pall., var. spitharncea, 



T.&G 255 



var. Wormskioldii, Bess... 255 

 borealis var. Purshii, Hook .... 255 



csespitosa, Hook 258 



campestris, Pursh 256 



cana, Pursh 256 



Canadensis, MX 256 



caudata, MX 256 



Chamissoniana, Bess 258 



var. saxatilis, Bess ........ 258 



desertorum, Hook 256 



discolor, Dougl 256, 553 



var. imcompta, Gr 553 



Douglasiana, Bess 257 



dracunculoides, Pursh 255, 553 



dracunculoides var. incana,T.&G.255 



Dracunculus, Pursh 255 



frigida, Willd 259 



frigida, var. Gmelinana, Bess . . 259 



glauca, Pall 255 



glauca, var. fastigiata, Bess .... 255 



globularia, Cham 258 



glomerata, Ledeb 258 



gnaphalodes, DC 257 



integrifolia, Pursh 257 



Lindleyana, Bess 257 



longifolia, Nutt 256 



Ludoviciana, Nutt 257 



var. Douglasiana, Eaton.. 257 

 var. gnaphalodes, T. & G. .257 



var. latifolia, T. & G. 257 



var. latiloba, Nutt 257 



Ludoviciana, Bess 256 



Norvegica, Fries 258 



var. Pacifica, Gray 258 



Nuttalliana, Bess 255 



PAGE. 



Purshiana var. a. latifolia, Bess . 257 

 var. /?. angustifolia, Bess ... 257 



Richardsoniana, Bess 258 



Senjavinensis, Bess 259 



spithamwa, Pursh 255 



tridentata, Nutt 256 



trifida, Nutt 256 



Tilem, Ledeb 258 



vulgaris, L 257 



var. Californica, Bess 258 



var. Tilesii, Ledeb 258 



Asarum, Linn 418 



Canadense, L 418 



Canadense var. /3., Hook 418 



caudatum, Lindl 418 



ASCLEPIADACE.<E (LXIIl) 318 



Asclepias, L 318 



amcena, Willd 318 



Cornuti, Decaisne 319 



Douglasii, Hook 319 



incarnata, L 318 



longifolia, MX 565 



nivea, Sims 319 



obtusifolia, MX 320 



ovalifolia, Decaisne 319 



phytolaccoides, Pursh 319 



purpurascens, L 320 



quadrifolia, L 319 



speciosa, Tor 319 



Syriaca, L 319 



tuberosa, L 318 



variegata, L 320 



variegata, L. var. minor, Hook . . 319 



verticillata, L 319 



viridiflora, Eaf 320 



var. lanceolata, Hook . . 320, 565 



Asimina, Adans 28 



triloba, Dunal 28 



Aster, L 218 



acuminatus, MX 227 



adscendens, Lindl 220 



adscendens, var. Fremonti, T. 



& G 546 



aestivus, Ait 225 



sestivus, Ait. 545 



alpinus, L 227, 546 



amplexicaulis, Willd 221 



amplus, Lindl 226 



angustus, T. & G 228 



argenteus, MX 220 



azureus, Lindl 221, 544 



bellidiflorus, Hook 225 



biflorus, MX 219 



borealis, Provancher 225 



campestris, Nutt 224 



canescens, Pursh 218 



carneus, Nees 224 



ciliolatus, Lindl 222 



commutatus, Gr. 544 



concinnus, Hook 221 



conspicuus, Lindl 220, 544 



