Spren 



pratensis, Z. . 



subaristatuSt Pursh. 

 Alsophila Perriniana, 

 Alsiiie media, L, 



rubella, Wahl. 

 Alyssum, DC. * 



arcticum, Fl. Dan. 



dentatum, Nutt» 



hyperboreuni, L. 



Ludovicianunit Nutt. 

 Amabanthace^, Juss. 

 Amaranthus, L. 



albus, L» 



paniculatus, L. 

 Ambrosia, L, • 



acanthlcarpa. Hook, 



elatior, X. . 



paniculata, Mx. 



trifitla, X. • 



Amelanchier, Medik. 



Botryapium, D C 



grandijlora, Dougl. 



ovalis, DC* 



parvifloray Dougl, 



sanguUiea, Lindl. 

 Amelhts spinulosus f Pursh, 



villosus, Pursh. 

 Amentace^, Juss, 



Amianthus Nuitallii, Gray 

 Am MI, L. 



majus, L, , 



Ammophila, Host, 



arundinacea, Host, 

 Amorpha, X, • 



canescens, Nutt, 



fruticosa, Z. 



microphylla, Pursh. 



nana, Nutt, 



nana f Sims, . 



Ampelideje, H. et K, 

 Ampelopsis, Mx. 



quiiiquefolia, Mx, 

 AMPHicAap^i:A, Ell, 



nionoica, ElU . 

 Amplectrum, Nutt» 



hyemale, Nutt, 

 Anchusa hirta, Muh). 



§:• 





INDEX. 



VOL. 



PAGE 



r 



2 



234 



canescenst Muhi, 



2 



233 



Virginica, L. 



2 



260 



Andromeda, Z. 





94 



cgerulea, Z. 





100 



calyculata, Z. 





49 



cupressina. Hook, 





48 



hypnoides, Z. 





49 



ligustrina, Muhl, 





49 



lycopodioides, PalL 





48 



paniculata^ L. 



2 



125 



pollfoHa, Z. 



2 



125 



racemosa, Mx. 



2 



125 



Stelleriana, Pall, (Tab 



2 



125 



taxifolia, Pall. 





309 



tetragona^ Z. , 





ao9 



Andropogon, Z. 





309 



avenaceus, Mx, 





309 



. dissitifloruSt Mx. 





26 



furcatus, Muhl, 





202 



nutans, L. ? . 





202 



1 



purpujascenst Muhl. 





202 



scoparius, Mx, , 





202 



And rosace, L, , 





202 



Chamaejasme, Wulff. . 





203 



elongaia. Rich. . , 



2 



22 



occidentalism Nutt. 



2 



22 



septentrionalis, Z. . 



2 



144 



Anemone, Z. , . 



2 



177 



aconitifolia, Mx. 



1 



261 



alpina, Z. • 



I 



261 



apiifoHa, Willd. 



2 



241 



arctica, Fisch, , 



2 



241 



Baldensis, Z. . • 



1 



139 



borealiSt Rich. 



I 



139 



cuneifolia, Juss. 



1 



139 



deltoidea. Hook, (Tab. 



1 



]39 



dichotoma, L. 



1 



139 



Fischer iana, DC. 



1 



139 



fragifera, Jacq. • 



1 



JI4 



Hepatica, L. . 



] 



lU 



Hepatica, Sprengr. 



1 



114 



Hudsoniana, Herb. Bai 



1 



161 



Hudsoniana, /3. Rich. . 



1 



161 



lancifolia, Pursh. • 



2 



194 



Ludoviciana, Nutt. . 



2 



194 



muItlEUa, Poir, 



2 



68 



mulii/ida, y. DC. 



275 



CXXXI.) 



III. A 



) 



VOL. 



PAQB 



2 



83 



2 



88 



2 



37 



2 



39 



2 



39 



2 



38 



2 



37 



2 



39 



2 



38 



2 



39 



2 



38 



2 



39 



2 



37 



2 



39 



2 



38 



2 



256 



2 



257 . 



2 



256 



2 



256 



2 



257 



2 



256 



2 



256 



2 



119 



2 



119 



2 



119 



2 



119 



■ 



2 



119 





4 





8 





5 





5 





6 





5' 





6 





5 





6 





8 





6 





6 





9 





8 





7 





7 





* 



6 





4 





7 





7 



