40 GRAMINEAE 



from Eu. Native also of Asia..— Pennsylvania : DELAWARE; CHESTER; 

 Bucks ; Luzerne ; Northampton ; Lancaster ; Frankun ; Hunt- 

 ingdon ; Atl^EGHENY. 



8. Bromus racemosus L. Upright Chess. Smooth Brome-grass. 

 (Man. p. 150 ; I. F./. S^S-) I"! fields and waste places all over the east- 

 ern U. S. and British Am.; also on the Pacific Coast. Nat. from Eu., 

 Native also of Asia. — Pennsylvania : Bucks ; Philadei<phia ; Lancas- 

 ter ; Northampton ; Montgomery ; Erie ; Franklin. 



9. Bromus biizaeformis Fisch. & Mcy. Quake-GrasS Brome. 

 (Man. p. 151; I. P.y. 5/7.) Sparingly introd. into Pa.; also from Mont, 

 to Calif. Native of northern Eu. and Asia. — Pennsylvania : Lancaster. 



60. LOLIXTM L. 



Empty scale shorter than the spikelet. 1. L. perenne. 



Empty scale equalling or extending heyond the flowering scales. 



2. L. temulentum. 



1. Lolliun perenne L- Ray-grass. Rye-grass. (Man. p. 152 ; I. 

 F. f. S2r.) In waste and cult, grounds almost throughout the northern 

 U. S. and southern British Am. Nat. from Eu. Native also of Asia. — 

 Pennsylvania : Delaware ; Chester ; Philadelphia ; Bucks ; North- 

 ampton ; Lancaster ; Franklin ; Erie ; Berks. 



2. Lolium temulentum L. Darnel. Ivray. (Man. p. 152; I. F._/". 

 S22. ) In waste and cult, grounds, locally, N. B. to Mich, and Ga. Nat. 

 or adv. from Eu. Abundant on the Pacific coast. — Pennsylvania : Phil- 

 adelphia, on ballast ; Northampton ; Delaware. 



61. LBPTURUS R. Br. 



1. Lepturus fiUformia (Roth.) Trin. Slender Hardgrass. (Man. 

 p. 152 ; I. F. /. S2S-) 1° waste places, Pa. to N. C, near or along the 

 coast. Adv. from Eu. — Pennsylvania : southern part of the state, ac- 

 cording to Britton, Man. p. 152. 



62. AGROPYRON J. Gaertn. 



Plants with horizontal rootstocks. i. A. repens. 



Plants without rootstocks. 

 Flowering scale terminated with an awn shorter than the scale body. 



2. A. Novae- Angliae. 

 Flowering scale terminated with an awn longer than its body. 



3. A. caninum. 



1. Agropyron repens (L.) Beau v. Couch-grass. Quitch-grass. 

 (Man. p. 154; I. F. i.J24.) In fields and waste places almost through- 

 out N. Am., except the extreme north. Nat. from Eu. Native also of 

 Asia.— Pennsylvania : Delaware ; Bucks ; Philadelphia ; North- 

 ampton ; Lancaster ; Erie ; Allegheny ; Jefferson. 



la. A. repens glauoum (Desf.) Scribn. Philadelphia. 



2. Agropyron Novae-Angliae Scribn. New England Wheat- 

 grass. Mountains of northeastern North America. — Pennsylvania: 

 Huntingdon ; Venango. 



