150 INDEX. 
PAGE. 
Deyeuxia sylvatica. 44 
Diplachne fascicularis. .109 
Distichlis maratima.105 
Eatonia obtusata.100 
Elymus Americanus. 57 
Elymus Canadensis. 58 
Elymus condensatus and Sibericus. 54 
Elymus (species ?). 01 
Elymus sitanion. 02 
Eragrostis poyeoides, var. megastachya. 81 
Eragrostis Purshii and poasoides. 78 
Eurotia lanata.128 
Festuca elatior. 39 
Festuca microstachys and tenella.. 35 
• Festuca ovina, var. brevifolia, and Kingii. 30 
Glyceria aquatica and distans .103 
Glyceria nervata and pauciflora.100 
Graphephorum Wolfii. 95 
Hierochloa borealis.100 
Hilaria Jamesii..114 
Hordeum jubatum.118 
Introduction, by Director. 3 
Juncus Balticus.125 
Juncus mertensianus, and Bufonius.120 
Koeleria cristata.110 
Leersia oryzoides.105 
Lolium perenne. 44 
Eolium perenne, var. Italicum.109 
Lupinus argentens, and var. argophyllus.128 
Luzula spadicea, var. subcongesta.127 
Melica spectabile. 95 
Muhlenbergia gracillima. 84 
Muhlenbergia gracilis, and var. breviaristata. 83 
Muhlenbergia glomerata.137-81 
Muhlenbergia Wrightii. 82 
Munroa squarrosa.120 
Oryzopsis cuspidata. 92 
Panicum capillare, and var. minimum. 33 
Panicum dichotomum and virgatum, var. glaucephylla. 29 
Panicum glabrum and crus-galli, var. echinatum. 34 
Panicum sanguinale. 35 
Panicum virgatum. 30 
Paspalum glabrum. 91 
Phalaris arundinacea and Canariensis. 88 
Phleum pratense and Alpinum.113 
