294 POACEJS. 



lacerate, decurrent, about 2 mm. long; blades flat, involute at the 

 apex, scabrid above, 1-2 cm. long, about 1 mm. wide. Panicle 

 much exserted, few-flowered, spikelets scattered, interrupted below, 

 and on plants of medium heiglit, 5-7 cm. long, about 3 mm. diam. ; 

 rays erect, mostly in pairs, some of the lower 2-3 cm. long, flower- 

 bearing nearly to the base. Empty glumes subequal, the lower a 

 little the shorter, membranous, broadly ovate, 1-nerved, obtuse, 

 erose or mucronate, a little less than 1 mm. long, floret with a callus 

 at the base, minutely pubescent; floral glume ovate, acute, mucro- 

 nate, 3-nerved, 2 mm. long; palea membranous, broadly oval, 

 scarcely acute when spread, a little shorter than its glume. 



California, Jones 2401; Oregon, Hoivell. 



Oregon and California. 



18. S. auriculatus Vasey, Contrib. U. S. Nat. Herb. 3 : 64 

 (1892). S. asperifolms YSii: brevifoUusYasey, Contrib. TJ. S. Nat. 

 Herb. 1:5G (1890). 



Culms much branched below, 15-25 cm. high, witli short creep- 

 ing rootstocks, nodes of the branches sliort and numerous. Leaves 

 glaucous; slieaths scabrous or smooth, longer than the short inter- 

 nodes; ligule lacerate, 1.5 mm. long; blades of the sterile shoots 

 scabrous, flat, subarticulate, 1-3 cm. long, 2 mm. wide, those of 

 the culm 3-6 cm. long. Panicle mostly included at the base, thin, 

 ovoid, 7-10 cm. long; rays single or in pairs, scabrous, some of them 

 rellexed, bearing single spikelets at the ends of the stiff slender 

 branches. Spikelets purplish; empty glumes 1-nerved, subequal, 

 oval, nearly 1 mm. long; floral glume broadly oval, obtuse, 3-nerved, 

 2 mm. long; palea oval, as long as its glume. Vasey says: " S. 

 asperifolius var. hrevifolius of contributors." Perhaps a variety of 

 S. asperifolius. 



Texas, Nealley for Nat. Museum. 



19. S. confusus Vasey, Bull. Torr. Club, 15:293 (1888). S. 

 ramulosus of authors, not of Kunth. 



A very slender tufted annual, much branched below, 8-20 cm. 

 high. Sheaths loose, longer than the internodes; ligule thin, 1.5-2 

 mm. long; blades scabrid above, flat, conduplicate or involute, 2-4 

 cm. long, 1-5 mm. wide. Panicle exserted or partially included, 



