NORTHWESTERN PLANTS. 103 



the spikelets; lower empty glume broadly lanceolate, 3-nerved, 

 3-3.5 mm. long, hyaline margined, scabrous on the midrib and 

 margins; upper empty glume ovate-lanceolate, 3-nerved, 3.5-4 mm. 

 long, acuminately acute, scabrous on the midrib and hyaline mar- 

 gins ; flowering glumes, 5-nerved, 5 mm. long, scabrid all over the 

 back, acute, membranous, hyaline margined ; palet nearly as long as 

 the flowering glume, ciliate on the upper half or two-thirds of the 

 nerves ; rachilla appressed scabrous. 



Douglas Co., Wash., between Coulee City and Waterville, 27 May 

 1896, Prof. W. J. Spillman. 



Danthonia spicata pinetorum. Culms tufted, 5-7 dm. 

 high, tei-ete, glabrous except the lowermost nodes, which are pubes- 

 cent; basal leaves rather numerous, curled, the blades narrow, 

 involute, 1 dm. or less long by 2 mm. wide, sparsely villose pubes. 

 cent on the under side, especially toward the base, scabrous on the 

 margins toward the apex; sheaths short, about 1 cm. long, mostly 

 glabrous, widely open, the ligule represented by tufts of bristles; 

 cauline leaves four, not curled, the sheaths one-half the length of 

 the internodes, or less; blades of the two lowermost more or less 

 villose on the upper side, their sheaths glabi'ous except at base; the 

 upper leaf-blade very short, all more or less scabrous on the 

 margins, the ligule represented by a few bristles or obsolete; 

 inflorescence racemose or paniculate, narrow, 2-5 cm. long, with 

 6-12 spikelets; spikelets 5-7 -flowered, 10-11 mm. long, including 

 awns, on erect pedicels; lower empty glume 11 mm. long, lanceolate, 

 acuminate, broadest just below the middle, 3-5-nerved, glabrous, 

 with a broad hyaline margin ; upper empty glume similar and as 

 long, mostly 5-nerved; flowering glumes obscurely 7-nerved, 6 mm. 

 long, including the teeth, which are 2 mm. long, sparsely strigose 

 pubescent and towards the base ciliate with white hairs ; awn 

 brownish, scabrous, 6-7 mm. long, usually twice twisted at base ; 

 palet reaching to the base of the teeth of the flowering glume. 



Based on my No. 943, collected in dry open coniferous woods, in 

 gravelly soil. Mason County, Wash., 3 miles south of Union City, 

 13 July, 1890. Dr. Vasey referred the plant to Danthonia 

 intermedia Vasey, from which it is markedly difierent in its taller 



