INDEX. 



TAGB 



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 



pedatum, Linn 263 



var. rangiferinum. Burgess 263 



Agropyrum, J. Gsertn 241 



caninum, Keich 241 



dasystachyum, Vasey 241 



divergens,' Nees 241 



var. tenue, Vasey 242 



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



dentale, V. & S 242 



repens, Beau v 242 



tenerum, Vasey 242 



violaceum, Lange 243 



Agrostis, Linn 198, 391 



sequivalvis, Trin 203 



alba 201 



albicans, Buckl 198 



canina, Linn 198, 391 



var. sequivahis, Trin 203 



var. melaleuca. Bong.. 200, 203 

 var. paleata, Vasey. . . 198, 392 



var. (?) tenella, Torr 198 



anna, Pursh 202 



cryptandra, Torr 197 



decumbens, Muhl 201 



diffusa, Mnhl 1 95 



Drummondii, Torrey 200 



exarata, Trin... 195, 392 



var. /?. minor, Hook 200 



exarata, var. Wat 199 



geminata, Trin 199 



HiUebrandii, Thurber 203 



hispida,Wmd 200 



humilis, Vasey 392 



lateriflora, Miclix 194 



laxiflora, Eich 199 



Macounii, Scrib 392 



Mexicana, Linn 194 



Michawcii, Trin 199 



microphylla, Steud 199 



oreophila, Trin 199 



perennans. Tuck 199, 392 



polymorpha, Trin 200 



PAGE 



racemosa, Miclix 194 



rubra, Linn., var. Americana.. 391 



rupestris, All 392 



rupeslris, Chapro 391 



scabra, Willd 199 



setosa, Muhl 194 



.lylvatica, Torr 195 



tenuiflora, 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 



cuespitosa, Linn 209 



caryophy Ilea, Linn 208 



danthonioides, Trin 210 



elongaia, Hook 210 



flexuosa, Lmn 211 



latifolia, Hook 209 



mollis, Muhl 218 



otesata, Michx 218 



prEecox, Linn 208 



truncata, Muhl 218 



Aletris, Linn 23 



a/ha, Michx 23 



farinusa, Linn 23 



Alisma, Linn 76 



natans, Pursh. 76 



P!antago,L. var. Americanum, 



Gray 76 



Plantago, L 76 



trivialis, Pursh 76 



Alismacbje (cxiv. ) 76 



Allium, Linn 34 



acuminatum, Hook , , 36 



avgvlusum, Pursh- 36 



Canadense, Kalm 36 



cernuum, Eoth 35 



cernuum. Hook 34 



Geyeri, Wat 36 



Nevii,Wat 37 



reticulatum, Fraser 36 



var. 13. Wat 36 



reticulatum, Hook 37 



Schoenoprasum, Linn 35 



stellatum , Fraser 36 



stellatum, Hook 35 



