18 



Poa trivialis, L. A little doubtful. 



Festuca ovina, L., var. duriuscula. Scarce. 



Festuca elatior, L. Abundant. 



Festuca nutans, Willd. Abundant in the western part. 



Phragmites communis, Trin. Three specimens in the north- 

 western part. 



Triticum repens, L. Abundant. 



Elymus Virginicus, L. On the approach to the island mostly. 

 Scarce. 



Elymus striatus, Willd,. Quite abundant in the western part. 



Gymnostichum Hystrix, Schreb. Abundant in the western part. 



Danthonia compressa, Austin. Abundant. 



Hierochloa borealis, B. & S. Quite abundant. 



Anthoxanthum odoi'atum, L. A few specimens only. 



Panicum virgatum, L. Abundant around the borders. 



Panicum latifolium, L. Abundant, 



Panicum pauciflorum, Ell. Abundant. 



Panicum dichotomura, L. This species is a little doubtful. 



Panicum sanguinale, L. Mostly on the railroad. 



Panicum capillare, Bosc. Mostly on the railroad bank. 



Panicum Crus-Galli, L. A few specimens found. 



Setaria glauca, Beauv. Mostly on the railroad bank. 



Setaria viridis, Beauv. Mostly on the railroad bank. 



Setaria Italica, Kunth. Two or three specimens only found. 



Andropogon furcatus, Muhl. A few specimens found in 1880. 



Equisetacese. 



Equisetum arvense, L. Abundant. 



Filices. 



Pteris aquilina, L. The most abundant fern. 

 Aspidium Thelypteris, Swartz. Abundant. 

 Asplenium Filix-foemiua, Bernh. Scarce. 

 Onoclea sensibilis, L. Not abundant. 



OphioglossacesB. 



Botrychium Virgiuianum, Swartz. Very fine specimens ob- 

 tained. Not abundant. 



