29 



A species introduced from southern Europe, quite frequent on the Atlantic and 



Pacific coasts. 

 Specimens examined. — Massachusetts : Boston (C. W. Swan) . New York: Taughannock 



(K. M. "Wiegand; F. V. Coville). Pennsylvania: Easton (A. P. Garber; T. C. 



Porter); Philadelphia (C.E.Smith 40). Delaware: Wilmington (A. Commons 



17) . District of Columbia: North Brookland (T. Holm) . Ohio: Painesville (W. C. 



Werner). British Columbia: Vancouver Island (J. Macoun 117). Washington: 



Pullman (C. V. Piper 2554) ; Walla Walla (C. L. Shear 1616). 

 14. BROMUS TECTORUM L. Sp. PI. 1: 77. 1753. Schedonorus terlorum Fr. 



Summ. Veg. Scand. 1 : 76. 



1846-49. (Fig. 14.) 



A tufted annual mostlj' 3-6 dm. 

 high, erect or somewhat gen- 

 iculate at the base. Culm 

 smooth, rather slender. 

 Sheaths i)ubescent; ligule 

 membranous, 2-3 mm. long, 

 much torn; blades linear, 

 narrow, mostly pubescent 

 throughout. Panicle broad, 

 rather dense, seaind, droop- 



ing, about 6-15 



cm. 



long, 



branches subcapiUary. Spike- 

 lets nodding, linear at first, 



spreading above in flower 



and becoming cuneiform, 



L3-;^0 mm. long; empty 



glumes acute, scabrous or 



pubescent, the lower nar- 

 row, 1-nerved, 4-6 mm. 



long, the upper 3-nerved, 



broader, 8-10 mm. long; 



flowering glume lanceolate, 



acute, .scabrous-pubescent 



to short pilose-pubescent, 



5-nerved, 11-13 mm. long 



with two narrow hyaline 



teeth at the apex and a 



straight aum about 13-15 mm. 



long; palea shorter than its 



glume. 

 A species from Europe quite 



generally distributed in this 



country, especially in waste 



places about cities. 

 Specimens examined. — Massachusetts: Cambridge (J. W. Blankinship; A. K. Harrison 



28); Essex County (W. P. Conant). Rhode Island: Providence (J. F. Collins). 



New Jersey: Weehauken (Wm. N. Van Sickle). Pennsylvania: Easton (T. C. 



Porter). i>eZfaran'.- Wilmington (A. Commons 16). District of Columbia: Wash- 

 ington (C. L. Pollard 426). Virginia: Alexandria (T. Holm). Indiana: Pine 



(L. M. Umbach) . Mississippi: Starkville (S. M. Tracy 1746) . Colorado: Fort 



Collins (E. D. Ball; C. S. Crandall 526). Utah: Ogden (T. A. Williams 2496); 



Provost (M. E. Jones 5503) . Washington: (Sandberg & Leiberg 191) ; Pasco 

 (A. D. E. Ehner 1047) . 

 This species is nearly related to B. sterili.'t, but is much smaller in every way and 



has a denser panicle. 



Fig. 13. — Bromus sterilin : a, Empty glumes and a floret; 6,dorsal 

 view of a flowering glume with portion of the awn. 



