55 



Index Kewensis gives this as a synonym of B. ciliatus L., but this is evidently a 



mistake. The following is the original description taken from Steudel 1. c. : 

 '^Bromus marginatus Nees (mpt. sub. : Ceratochloa) . 

 "Foliis vaginisque hirsutis; panieul;e erectie stricta? radiis subsimplioibns; spiculis 



oblongo-lanceolatis compressis utrinque fonvexis pubescenti-scabris 0-8-floris; 



seta valvula sua 7-nervia duplo breviore. 11 Douglas legit ad fluv. Columbia 



St. Louis." 



31 r. BROMTJS MAflGINATUS LATIOR n. var. 



A larger and .stouter plant than the species, sometimes reaching 17 or 18 dm. higli. 

 Panicle larger, 2-3 dm. long, with longest lower branches 10-20 cm. long, awn 

 usually slightly longer, sometimes reaching 6 or 7 mm. Otherwise like the 

 species. 



Type No. 1615, collected by C. L. Shear, Walla Walla, Wasliington. 



General distribution about the same as for tiie species, but in lower altitudes, being 

 most common in the foothills and valleys down to about 1,600 meters. 



Specimens examined. — New Mexico: Santa Fe (Dr. George Vasey). Utah: Springdale 

 (M. E. Jones 5242) . Colorado : Ft. Collins ( L. H. Pammel ) . Arizona : Little Lar- 

 amie River (T. A.Williams 2233). Wi/otiung: Bozeman (C. L. Shear 476; P. A. 

 Rydberg 2213); no locality (J. W. Blankinship); Sheep Creek (P. A. Rydberg 

 3308; F^ L. Scribner 16); Spanish Creek (P. A. Rydberg 3337); East Gallatin 

 Swamp ( P. A. Rydberg 3171 ) ; Spear Basin (P. A. Rydberg 3155) . Llaho : head of 

 Little Potlatch River (•Sandl)erg, Heller, & McDougal 434, 331) ; Lewiston (A. A. 

 & E. G. Heller 3202); Moscow (L. F. Henderson 2829); St. Josephs River (J. B. 

 Leiberg 1298) . Wa.'<hliu/f<m : Walla Walla (C. L. Shear 1615); Pullman (C. V. 

 Piper 1738). Oregon: (W. C. Cusick650); Prineville (J. B. Leiberg 314). Cali- 

 fornia: (J. G. Lemmon). 



This plant has been collected by wool waste heaps at North Berwick, JNIaine. It is 

 also escaped from cultivation about Ames, Iowa, from which place it is repre- 

 sented in the herbarium by C. R. Ball's Nos. 33 and 148. 



Forms of this plant in Oregon and Washington connect with B. carinatus hookerianus, 

 which is generally distinguished by its smoother spikelets and longer awns. 



31/i. BROMUS MARGINATUS SEMINUDUS n. var. 



This differs from the species in the following particulars: Usually more leafy, but 

 less pubescent or, in some cases, nearly smooth throughout; spikelets with empty 

 glumes glabrous or slightly scabrous on the nerves; flowering glumes somewhat 

 scabrous or scabrous-puberulent. 



Type No. 1811 C. L. Shear, collected on open mountain side 5 miles above Wallowa 

 Lake, Oregon. 



Distriliution alxiut the same as for the species. 



Specimens examined. — Utah: Santa Clara (M. E. Jones 5118b); Ogden (T. A. AVil- 

 liams 2477; S. M. Tracy 322). Wyoming: Sherman (L. H. Pammel) ; Bear Lodge 

 (T. A. Williams 2648, 2633); Sundance (D. Griffiths 984); Spread Creek (F. 

 Tweedy 64). Idaho: Beaver Canyon (C. L. Shear 573); Forks of Boise River 

 (L. F. Henderson 3271). Yellowstone National Park: (J. N. Rose 222). Montana: 

 Spanish Creek (P. A. Rydberg 3028, 3104); Gallatin County (F. Tweedy); 

 BridgerPass (P. A. Rydberg 3219); Bozeman (P. A. Rydberg 2233^ ) . AsKiniboia: 

 Cypress Hills (J. 3Iacoun 13040). Washington: (G. R. Vasey; Kirk Whited 2, 

 4); Montesano (A. A. & E. G. Heller 3979). Oregon: Mountains above Wal- 

 lowa Lake (C. L. Shear 1811, 1789, 1777, 1785, 1803, 1810, 1794, 1815, 1766, 1775, 

 1796); Wallowa Lake (C. L. Shear 1751, 1762); Hood River (L. F. Henderson); 

 Hoover Creek (J. B. Leiberg 138); Government Meadows, Blue Mountains (C. 

 L. Shear 1668, 1666); Blue Mountains (C. L. Shear 1679, 1688, 1674); Cathedral 



