BRACHYELYTRUM Beauv. 



167 B. ERECTUM Beauv. Moosic Lake. 



PHLEUM L. (Timothy, Herd's Grass) 



168 P. PRATENSE L. Common. 



ALOPECURUS L. (Foxtail Grass) 



169 A. GENicuLATUS L. Wyoming Swamp. 



SPOROBOLUS R. Br. (Rush Grass) 



170 S. VAGiNiFLORUS Wood. Sterile fields. 



AGROSTIS L. (Bent Grass) 



171 A. ALBA L. Frequent. 



172 A. ALBA, VAR. VULGARIS Thurb. (Red Top.) Common. 



173 A. HYEMALis BSP. (Hair Grass.) Pocono, Ararat. 



174 A. PERENNANs Tuckerm. (Thin Grass.) Frequent in woods. 



175 A. PERENNANS, VAR. ELATA Hitchc. Clarks Summit. 



CALAMAGROSTIS Adans. (Reed Bent Grass) 



176 C. PORTERi Gray. Naomi Pines, Moosic Lake. 



177 C. CANADENSIS Beauv. (Blue-Joint Grass.) Frequent. 



178 C. ciNNOiDES Barton. Moosic Lake. 



CINNA L. (Wood Reed Grass) 



179 C. ARUNDINACEA L. LoW WOOds. 



180 C. LATiFOLiA Griseb. Not uncommon. 



HOLCUS L. (Velvet Grass) 



181 H. LANATUS L. Common. 



SPHENOPHOLIS Scribn. 



182 S. NiTiDA Scribn. Campbell's Ledge. 



183 S. PALUSTRis Scribn. Susquehanna. 



KOELERIA Pers. 



184 K. CRISTATA Pers. Campbell's Ledge. 



DESCHAMPSIA Beauv. 



185 D. FLEXUOSA Trin. (Common Hair Grass.) Frequent on dry banks 



in woods. 



186 D. CAESPITOSA Beauv. Monroe County, Prof. Porter. 



AVENA L. (Oat) 



187 A. SATiVA L. (Common Oat.) Spontaneous but not persistent. 



ARRHENATHERUM Beauv. (Oat Grass) 



188 A. ELATius Beauv. Susquehanna. 



DANTHONIA DC. (Wild Oat Grass) 



189 D. SPICATA Beauv. Common. 



190 D. coMPRESSA Aust. Moosic Lake, Nay Aug. 



18 



