26 GRAMINEAB 



5. Muhlenbergia tenuiilora (Willd.) B.S.P. Slender Muhlen- 

 BERGIA. (Man. p. loo ; I. F.f.326.) In rocky woods, Mass. to south- 

 ern Out. and Minn., Ala. and Tex. — Pennsylvania : DELAWARE ; CHES- 

 TER ; Bucks ; Northampton ; Huntingdon ; Blair ; Lancaster ; 

 Franklin. 



6. Muhlenbergia dMusa Willd. Nimble Will. DropsEED Gba-SS. 

 (Man. p. 100 ; I. 'P.f. 327.) On dry hills and in woods, Me. to Minn., 

 Fla. and Tes..— Pennsylvania : Delaware ; CHESTER ; Bucks ; North- 

 ampton; Lancaster; Franklin; Huntingdon; Blair; Erie; Phila- 

 delphia. 



7. Muhlenbergia capillaria (Lam.) Trin. Long awned Hair-grass. 

 (Man. p. loi^ I. P./. J2p.), In dry sandy or rocky soil, Mass. to Mo., 

 Fla. and Tex. — Pennsylvania : Lancaster, Gap. 



22. BRACHYELYTRTJM Beauv. 

 1. Brachyeljrtrum ereotum (Schreb.) Beauv. BrachyelyTrum. 

 (Man. p. 101 ; 1. F. /. 332.) In moist places or woods, Newf. to Minn., 

 N. C, Tenn. and Mo. — Pennsylvania: Delaware; Chester; North- 

 ampton ; Lancaster ; Erie ; Philadelphia ; Monroe ; Lacka- 

 wanna ; Pike ; Franklin. 



23. HELEOCHLOA Host. 

 1. Heleochloa schoenoides (L.) Host. Rush CaT's-Tail Grass. 

 (Man. p. 102 ; I. F. /. 333.) In waste places, southern N. Y. to Del. 

 Nat. from Eu. — Pennsylvania : ' Philadelphia ; Bucks ; Delaware ; 

 Lancaster, Columbia and Lancaster. 



24. PHLEUM L. 

 1. Phleum pratense Lt^ Timothy. Herd Grass. (Man. p. 102; 

 I- F- /• 334- ) In fields nearly throughout N. Am. Also in Eu. and 

 Asia.— Pennsylvania : Northampton; Lancaster; Franklin; EriE; 

 Philadelphia ; Chester ; Allegheny. Common. 



25. ALOFECURUS L. 



Empty scales of the spikelet united for ii their length, glabrous to hispid on 

 the keel. i. ^. agrestis. 



Empty scales of the spikelet united for y^ their length or less, long-ciliate on 

 the keel. 2. A. geniculatus. 



1. Alopecurus agrestis L. Slender Foxtail. (Man. p. 103 ; I. F. 

 /. 336.) In waste places, southern N. Y. to N. J. Adv. from Eu. 

 Native also of Asia..— Pennsylvania : Philadelphia, on and near ballast. 



2. Alopecurus geniculatus L. Marsh Foxtail. (Man. p. 103 ; I. F. 

 / 337-) IH wet soil, Newfoundland to B. C, Fla., Ariz, and Cal.— 

 Pennsylvania : Delaware, Tinicum ; Huntingdon ; Luzerne. 



26. SPOROBOLUS R. Br. 



A. Leaf-slfeaths glabrous, 

 a. Upper leaf-sheaths enclosing panicles which are usually concealed, or 

 sometimes partially protruding : terminal panicle contracted, narrow. 



