No. 50.J 191 



Aristida, L. 



dichotoma, Michx. Barren fields. July . 

 gracilis, Ell. Sandy fields . Long Island . 



Calamagrostis, Roth. 



canadensis, P. de Beauv . Wet meadows . August . 

 coarctata, Torr. in Gray's Gram, fy Cyp. C. canadensis, Nutt. 



Arundo coarctata, Torr.fi. Wet thickets. Aug. 

 inexpansa, Gray. Swamps ; nor.hern and western counties. July, 

 arenaria, Roth. Arundo arenam, L. Sandy seacoast of Long 



Island . Augast-September . 



Anthoxanthum, L. Sweet-sce?it(d Vernal Grass. 



§ odoratum, L. . Moist meadovs and open woods. June- August. 



Aira, L. Hair Grass. 



flexuosa, L . Dry woods and rocky hills . June . 



cespitosa, L. A. aristulata, Torr.fi. Moist situations, along 



rivers . June . 

 atropurpurea, Wahl. Sources of the Hudson, Essex county. Aug. 



Trisetum, Pers. 



palustre, Torr. Avena pennsylvanica, L. A. palustris, Michx. 

 Wet meadows . May- July . 



purpurascens, Torr. Avena striata, Michx. Northern and wes- 

 tern counties . Wet woods and banks of rivers . 

 June. 



molle, Trin. Avena mollis, Michx. Rocky banks of rivers; 

 northern and western counties. July. 



Holchus, L. Soft Grass. 



§ lanatus, L . Wet meadows . July . 



Hierochloa, Gmel. 



borealis, R, <§• S. Holchus odoratus, L. H. fragrans, Ph. Se- 

 neca Grass . Wet meadows . May . 

 alpina, R. <£• S . High mountains of Essex county. June. 



Uralepis, Nutt. 



aristulata, Nutt. Sandy shores about New- York, and on the sea- 

 coast of Long Island. August. 



Arundo, L. Reed Grass. 



phragmites, L, Borders of ponds and swamps. August. 



