170 



INDEX. 



Page. 



EleDcharis 



acicularia, Br 138 



compressa, Sulliv 138 



olivacea, Torr 138 



palustris, R. Br 138 



Ellisia 



Nyctelea, L 103 



Elymus: 



Canadensis, L 151 



condensatus, Presl 1 . 151 



Sitanion, Schult 151 



Elyna, Schrad 138 



spicata, Schrad 138 



Encalypta 



apophysata, N. &H 158 



commutata, N. & H 157 



rhabdocarpa, ScliwsBgr 157 



streptocarpa, Hedw 157 



vulgaris, Hedw 157 



Endococcus 



erraticus (Mass. ), Nyl 163 



Epilobium 



alpinum, L 43 



angustif olinm, L 43 



latifolium, L 43 



palustre, L 43 



paniculatum, L 43 



tetragonum, L 43 



EQUISETACE.E 152 



Equisetum 



arvense, L 152 



leevigatum, A. Br 153 



pratense, Ehrli 152 



variegatum, Schleich 153 



Eragrostis 



Purshii, Bernh 150 



ERICACEAE 88 



Ericameria, Nutt 65 



Erigeron 



acre,L 60 



armerisef olium, Turcz 60 



Bellidiastruin, Nutt 60 



Canadense, L 59 



canuin, Gray 62 



compositum, Pursh 59 



Coulteri, Porter 61 



divaricatuin, MX 59 



divergens, T. & G 61 



glabellum, Nutt 61 



glandulosum, Porter 60 



grandiflorum, Hook 60 



macranthum, Nutt 61 



pumilum, Nutt 61 



trifidum, Hook 60 



uniflorum, L 60 



ursimim Eaton 60 



Eriocoma, Nutt 146 



cuspidata, Nutt 146 



Eriogonum, MX 119 



acaule, Nutt 120 



alatum, Torr 119 



annuum, Nutt 122 



brevicaule, Nutt 122 



cernuum, Nutt 122 



e#MS?m,Nutt 121 



flavum, Nutt 120 



Gordon!, Benth 122 



heracleoides, Nutt 120 



Jamesii, Benth 120 



Page. 



Eriogonum, MX Continued. 



lachnogynum, Torr 121 



niicrothecum, Nutt 121 



multiceps, Ker 121 



ovalif olium, Nutt 121 



pauciflorum, Pursh 121 



tenellum, Torr 122 



umbellatum, Torr 120 



Eriophorum 



polystachyon, L 138 



Eritrichium, Schrad 101 



angustif olium, Torr 102 



crassisepalum, Torr 102 



glomeratum, DC 102 



Jamesii Torr 103 



villosuni, DC 101 



virgatu m, Porter 102 



Erysimum 



asperum, DC 8 



cheirauthoides, L 8 



Erythronium 



grandiflorum, Pursh 134 



Euchroma 



Ireviflora, Nutt 96 



Eupatorium 



ageratifolium, DC 55 



Berlandieri, DC 55 



purpureum, L 55 



Euphorbia 



dictyosperma, Engelm 126 



Fendleri,T. & G 125 



glyptosperma, Engelm 125 



hexagona, Nutt 125 



lata, Engelm 124 



inaculata, L 125 



marginata, Pursh 125 



inontana, Engelm 126 



obtusata, Pursh 126 



petaloidea, Engelm 125. 



revoluta, Engelm 125 



EUPHORBIACE^; 124 



Eurotia, Adams 118 



lanata, Moq 118 



Eutoca 



sericea, Grah 103 



Evolvulus 



argenteus, Pursh 109 



Fallugia, Eudl 35 



paradoxa, Torr 35 



Festuca 



brevifolia, Br 150 



ovina, L 150 



FILICES 153 



Fontinalis 



antipyretica, L 160 



Neo-Mexicana, S. & L 160 



Fragaria 



vesca, L ' 35 



Virginiana, Ehrh 35 



Frankenia, L 12 



Jamesii, Torr 12 



FRANKENIACE.E 12 



Franseria, Cav 69 



discolor, Nutt 69 



Hookeriana, Nutt 69 



tenuif olia, Gray 69 



tomentosa, Gray 69 



Frasera 



speciosa, Dougl 113 



