NORTHWESTERN PLANTS. 101 



lateral awns; palet as long as the glume, scabrous on the nerves, 

 bifid at apex; spikelets 2-3-flowered, one or two at each joint of 

 the rachis, these linear, not at all clavate, flattened, scabrous on the 

 margins, 6 mm. long. 



Bishop's Bar, Snake River, Whitman Co., Wash., 7 July, 1898, 

 D. A. Brodie. This species, like S. anomalum J. G. Smith, tends/to 

 invalidate the genus Sitanion. Only the jointed rachis and occasion- 

 ally trifid flowering glume separate it from Elymus proper. 



y Elymus virescens. Whole plant bright green, glabrous except 

 the inflorescence; culms tufted, dark brown at the nodes, about 6 dm. 

 high ; culm leaves four; sheaths of the lower leaves one-fourth longer 

 than, of the second as long as, of the third one-fourth shorter than, 

 the respective internodes; ligule very short, hyaline; spike 6-8 cm. 

 long, erect, rather slender, dense; spikelets commonly in fours, some- 

 times single, mostly 3-flowered, 10 mm. long ; empty glumes lanceolate, 

 7-8 mm. long, including the attenuate apex, 3-nerved, the nerves 

 slightly scabrous towards the apex; flowering glumes lanceolate, 

 obtuse, slightly scabrous on the back, 5-7-nerved, 8-10 mm. 

 long, with a minute awn 1 mm. long ; palet 7-9 mm. long, scabrous- 

 ciliate on the nerves ; joints of the rachilla scabrous. 



Based on my No. 1988, collected in damp coniferous woods, 

 3,000 ft. altitude, Olympic Mts., near the head of the Duckaboose 

 River, August, 1895. In the same place was collected Elymus 

 ciliatus Scribn., since described from Alaska specimens. The new 

 species is apparently nearest to E. glaucus Buckl., from which it is 

 at once distinguished by its bright green color and almost awnlesa 

 flowering glumes. 



Elymus condensatus pubens. Smaller than the typical form 

 in every way, about a meter high ; culms pubescent with short white 

 hairs, especially near the nodes ; sheaths villose-pubescent with rather 

 long white hairs, especially the lower ones; blades glabrous; the 

 whole inflorescence rather minutely puberulent. 



Growing with the typical form in strong alkali soil near Yakima 

 City, Wash. Collected 10 July, 1897. No. 2591. 



Poa OIneyae. Perennial with running root-stocks; culms tufted, 

 6-8 dm. high, terete, striate, glabrous, pale green, the nodes 



