18 CONTRIBUTIONS FROM THE NATIONAL HEBBARIUM. 



The following collections are representative: 

 Bkitish Columbia: 



Victoria, Macoun 185. 

 Washington: 



Clallam County, Elmer 1914. 



Seattle, Piper 836. 



Walla Walla, Shear 1587. 



Waitsburg, Horner 557. 

 Idaho: 



Lewiston, Heller 3232. 



Clearwater Eiver, Sandberg, Heller, & MacDougal 291. 

 Oregon: 



Hoover Canyon, Gilliam County, Leiberg 150. 



Silverton, Hall 637. 



Portland, Sheldon 10505. 

 California: ^ 



San Bernardino, Parish 4761. 



San Francisco, Torrey 576. 



San Diego, Brandegee 97. 



Monterey, Davy 7245. 



Santa Barbara, Elmer 3832. 



Santa Rosa, ^^ZZ^r 5681. 



San Diego, Grant 896a. > 



Mendocino, Brown 762. 



Humboldt Bay, Chandler 1120. 

 Arizona : " 



Fort Huachuca, Palmer 465. 

 Mexico: 



Foothills of Iztaccihuatl, Beam 22. 



Nachoguero Valley, Lower California, Schoenfeldt 3442. 



Explanation of Plate. — Drawn from 150 Leiberg, collected in Oregon, Plant one-half natural 

 size; details enlarged five times. 



11. Festuca bromoides L. 



Festuca bromoides L. Sp. PI. 1: 75. 1753. "Habitat in Anglia, Italia." 

 Festuca sciuroides Roth, Cat. Bot. 2: 11. 1800. 



description. 



stems erect, rarely geniculate at base, 10 to 30, rarely 40 cm. high, glabrous, 

 3-iointed; sheaths smooth, longer than the internodes; ligule very short; blades 

 linear, glabrous, flat or loosely involute; panicle usually dense, narrow, 5 to 10 cm. 

 long, seldom longer; rays solitary, rather short, appressed; spikelets pale green, 4 or 

 5-flowered, 9 to 12 mm. long, on stalks 2 to 5 mm. long; glumes unequal, the lower 

 1-nerved, 4 to 4.5 ram. long, the upper 3-nerved, 6 to 7 mm. long; lemma lanceolate, 

 scabrous above, 7 to 8 mm. long, attenuate into an awn 10 to 13 mm. long; palea 

 lanceolate, obtuse at the very apex, the nerves hispidulous; stamen 1. (Plate VI.) 



This plant is abundantly introduced on the Pacific coast from Vancouver Island to 

 southern California, but apparently not elsewhere in North America. The oldest 

 specimens we have seen bear the date of 1886. Collectors have for the most part 

 labeled it myuros or microstachys. From the former it is easily distinguished by its 

 different glumes. Normal forms of F. pacijica are easily distinguished by the divar- 

 icately branching panicle, but shade or diminutive forms simulate bromoides closely. 

 The best distinction in such cases is furnished by the palea. In pacijica the inflexed 



