164 INDEX TO SPECIES. 



Cynosuroides, Spartina, 48 

 Dactylon, Cynodon, 47 

 Dactylon, Panicum, 47 

 Decidua, Festuca, 71 

 Decumbens, Danthonia, 98 

 Decumbens, Festuca, 98 

 Decumbens, Melica, 98 

 Decumbens, Poa, 98 

 Decumbens, Sieglingia, 98 

 Decumbens, Triodia, 98 

 Diandrus, Bromus, 66 

 Distans, Festuca, 82 

 Distans, Glyceria, 82 

 Distans, Poa, 82 

 Distans, Sclerochloa, 82 

 Dubia, Poa, 89 

 Dulcis, Poa, 94 

 Dumetorum, Festuca, 69 

 Duriuscula, Festuca, 69 

 Echinata, Phalena, y6 

 Echinatus, Chrysurus, 76 

 Echinatus, Cynosurus, 76 

 Effusum, Milium, 2 

 Elatior, Arrhenatherum, 44 

 Elatior, A vena, 41 

 Epigeios, Calamagrostis, 32, 33 

 Epigejos, Arundo, 32, S3 

 Erectus, Bromus, 62 

 Europaeus, Elymus, 52 

 Fascicularis, Agrostis, 27 

 Fatua, Avena, 41 

 piriformis, Digitaria, 4 

 Filiformis, Lepturus, 49 

 Flavescens, Avena, 43 

 Flavescens, Trisetum, 43 

 Flexuosa, Aira, 37 

 Flexuosa, Avena, 37 



