138 P. coLUMBiANUM Scribti. North of Pocono Manor, Monroe County. 



139 P. SPHAEROCARPON Ell. Stroudsburg. 



140 P. XANTHOPHYSUM Gray. Bald Mount, Elk Mountain. 



141 P. scoPARiuM Lam. Susquehanna, Prof. Graves. 



142 P. cLANDESTiNUM L. Susquchanna. 



143 P. LATiFOLiuM L. Occasional. 



ECHINOCHLOA Beauv. 



144 E. cRUSGALLi Beauv. (Barnyard Grass.) Common. 



SETARIA Beauv. (Bristly Foxtail Grass) 



145 S. GLAUCA Beauv. Hawley. 



146 S. viRiDis Beauv. Susquehanna, Prof. Graves. 



147 S. iTALicA Beauv. (German Millet.) Susquehanna, Prof. Graves. 



CENCHRUS L. (Hedgehog Grass) 



148 C. TRiBULoiDES L. (Sandbur.) Linden Street, O. and W. Yard, 



Scranton. 



ZIZANIA L. (Water or Indian Rice) 



149 Z. PALUSTRis L. Mount Pleasant Fish Hatchery. 



LEERSIA Sw. (Cut-Grass or White Grass) 



150 L. viRGiNicA Willd. Campbell's Ledge. 



151 L. ORYZOiDES Sw. Frequent. 



PHALARIS L. (Canary Grass) 



152 P. cANARiENsis L. O and W. Yard, Scranton. 



153 P. ARUNDiNACEAE L. Mountain ponds. 



ANTHOXANTHUM L. (Sweet Vernal Grass) 



154 A. ODORATUM L. Common. 



MILIUM L. (Millet Grass) 



155 M. EFFUSUM L. Occasional. 



ORYZOPSIS Michx. (Mountain Rice) 



156 O. PUNGENS Hitchc. Bald Mount. 



157 O. ASPERiFOLiA Michx. Moosic Lake. 



158 O. RACEMOSA Ricker. Mocanaqua. 



ARISTIDA L. (Triple-Awned Grass) 



159 A. DiCHOTOMA Michx. (Poverty Grass.) Sandy soil. 



160 A. PURPURASCENs Poir. Campbell's Ledge. 



MUHLENBERGIA Schreb. 



161 M. SOBOLIFERA Trin. Taylor ledges. 



162 M. TENUiFLORA BSP. Rocky woods. 



163 M. SYLV.A.TICA Torr. Taylor. 



164 M. MEXicANA Trin. Frequent. 



165 M. RACEMOSA BSP. Mountain tops. 



166 M. scHREBERi J. F. Gmel. (Nimble Will.) Fairview. 



17 



