91 



30. Aira, L. 



flexuosa, L. (Hair Grass.) 

 Dry banks. Frequent. June. 



31. Danthonia, DC. 



spicata, Beauv. 



Dry sterile soil. Common. June. 



32. Trisetum, Pesr. 



paliistre, Torr. 



Low meadows. Frequent. June. 



33. Arrhenatherum, Beauv. 



avenaceum, Beauv. (Oat Grass.) 



Fields, &c. Frequent. May. Native of Europe. 



34. Holcus, L. 



lanatus, L. (Velvet Grass.) 



Meadows and moist banks. Frequent. June. Na- 

 tive of Europe. 



35. Anthoxanthum, L. 



odoratum, L. (Sweet-scented Vernal Grass.) 

 Fields and meadows. Common. May. Native of 

 Europe. 



36. Phalaris, L. 



arundinaeea, L. 



"Wet meadows, &c. ; Fern Hook. Frequent. June. 

 Canadensis, L. (Canary Grass.) 



Sometimes found about yards. July. Nat. of Europe. 



37. Paspalum, L. 



fluitans, 1 Kunth. 



In an exsiccated pond; J. W. Andrews'. Rare, 

 setaceum, Miclix. 



Sandy roadsides, &c. Frequent. Aug. 

 laeve, Michx. 



Moist meadows. Common. Aug. 



38. Panicum, L. (Sub-genus Digitaria, Scop.) 



filiforme, L. 



Sandy roadsides, &c. Frequent. Aug. 

 glabrum, Gaud in. 



Cultivated grounds, &c. Common. Aug. Native 

 of Europe. 



1 A native of the Southern States, but evidently indigenous in the 

 I ocality named, which has been for a number of years submersed. 



