LOLIUM L. (Darnel) 



223 L. PERENNE L. (Common Darnel or Rye Grass.) Not uncommon. 



AGROPYRON Gaertn. 



224 A. REPENs Beauv. (Couch or Quick Grass.) Common. 



225 A. BiFLORUM R. and S. Bald Mount. 



226 A. CANINUM Beauv. (Awned Wheat Grass.) Northeastern Pennsyl- 



vania, Prof. Porter. 



HORDEUM L. (Barley) 



227 H. JUBATUM L. (Squirrel-Tail Grass.) Lake Ariel, Clarks Summit, 



Lackawanna Yards, Scranton. 



ELYMUS L. (Wild Rye) 



228 E. viRGiNicus L. Frequent. 



229 E. CANADENSIS L. Campbell's Ledge. 



230 E. CANADENSIS, VAR. GLAuciFOLius Gray. Susquehanna. 



231 E. STRiATUS Willd. Campbell's Ledge. 



HYSTRIX Moench. (Bottle-Brush Grass) 



232 H. PATULA Moench. Moist woods. 



TRITICUM 



233 T. SATIVUM Lam. (Winter Wheat.) Spontaneous but not persistent.* 



SECALE 



234 S. CEREALE L. (Rye.) Spontaneous but not persistent.* 



CYPERACEAE (Sedge Faitiily) 

 CYPERUS L. (Galingale) 



235 C. DiANDRUs Torr. Tobyhanna, Little Birdseye. 



236 C. ARisTATUs Rottb. Susquehanna. 



237 C. EscuLENTus L. Kingston. 



238 C. FERAX Rich. Susquehanna. 



239 C. STRIGOSUS L. Big Birdseye. 



240 C. ovuLARis Torr. Wyoming Swamp, Susquehanna. 



241 C. FiLicULMis Vahl. Duryea, near river. 



DULCHIUM Pers. 



242 D. ARUNDiNACEUM Britton. Wyoming Swamp. 



ELEOCHARIS R. Br. (Spike Rush) 



243 E. oLiVACEA Torr. Susquehanna. 



244 E. ovATA R. and S. Little Birdseye, Susquehanna. 



245 E. PALusTRis R. and S. Wyoming Swamp. 



246 E. ACicuLARis R. and S. Mud Pond. 



STENOPHYLLUS Raf. 



247 S. CAPiLLARis Britton. Coxton. 



20 



