INDEX. 



PAGE 



Abies, 363 



amabilis, Forbes 363 



Acnida, 351 



tuberculata, Moq. var. sub- 



nuda, Wat 351 



Acorus, Linn 74 



Calamus, Linn 74 



Adiantum, Linn 263 



boreale, Presl 263 



pedatom, Linn 263 



var. rangiferinum, Burgess 263 



Agropyrum, J. Gsertn 241 



caninum, Reich 241 



dasystachyum, Vase y 241 



divergens, Nees 241 



var. tenue, Vasey 242 



glaucum, R. & S., var. occi- 



dentale, V. & S 242 



repens, Beauv 242 



tenerum, Vasey 242 



violaceum, Lange 243 



Agrostis, Linn 198, 391 



nequivalvis, Trin 203 



alba 2,01 



albicans, Buckl 198 



canina, Linn 198, 391 



var. sequivalvis, Trin 203 



var. melaleuca, Bong.. 200, 203 

 var. paleata, Vasey. . .198, 392 



var. (?) tenella, Torr 198 



Cinna, Pursh 202 



cryptandra, Torr 197 



decumbens, Muhl 201 



diffusa, Muhl 1 95 



Drummondii, Torrey 200 



exarata, Trin... - 195, 392 



var. ft. minor, Hook 200 



exarata, var. Wat 199 



geminata, Trin 199. 



Hillebrandii, Thurber 203 



hispida, Willd 200 



humilis, Vasey 392 



lateriflora, Michx 194 



laxiflora, Rich 199 



Macounii, Scrib 392 



Mexicana, Linn 194 



Michauxii, Trin 199 



microphylla, Steud 199 



oreophila, Trin 199 



perennans, Tuck 199, 392 



polymorpha, Trin 200 



PAGE 



racemosa, Michx 194 



rubra, Linn., var. Americana.. 391 



rupestris, All 392 



rupestris, Chapm 391 



scabra, Willd 199 



setosa, Muhl , 194 



sylvatica, Torr 195 



tenuiftora, Willd. .... 195 



varians, Ti in , . .... 200, 392 



verticillata, Vill 200 



Virginica, Muhl . 198 



vulgaris, With 200 



var. alba, Vasey. 201 



Aira, Linn , 208 



ambigua, Michx 209 



arctica, Spreng 209 



atropurpurea, Wahl 209 



ctespitosa, Linn 209 



caryophyllea, Linn 208 



danthonioides, Trin 210 



elongata, Hook , 210 



flexuosa, Linn. . . 211 



latifolia, Hook 209 



mollis, Muhl 218 



oblusata, Michx 218 



prsecox, Linn 208 



tntncata, Muhl 218 



Aletris, Linn 23 



alba, Michx. 23 



farinusa, Linn 23 



Alisma, Linn 76 



natans, Pursh 76 



Plantago, L. var. Americanum, 



Gray 76 



Plantago, L 76 



trivialis, Pursh 76 



ALIBMAOELE (cxiv.) 76 



Allium, Linn 34 



acuminatum, Hook 36 



angulosum, Pursh. 36 



Canadense, Kalm 36 



cernuum, Roth 35 



cernuum, Hook 34 



Geyeri, Wat 36 



Nevii, Wat 37 



reticulatum, Fraser 36 



var. ft. Wat 36 



reticulatum, Hook 37 



Schcenoprasum, Linn 35 



stellatum, Fraser 36 



stellatum, Hook 35 



