A(JHUST1I)K.E. 303 



blades of tho culm flat or involute, 5-15 cm. long, 2-3 mm. wide; 

 blades and sheaths nu)ro or less eiliate with tubercled hairs. I'ani- 

 cle enclosed at the base or but sliifhtly exserted, broadly ])yraniidal, 

 lU-10 cm. long; rays diverging, slender, rigid, the longest S-IU 

 cm. long, bearing a few spikelets on long pedicels on the outer 

 half. Spikelets linear-lanceolate, empty glumes 1-nerved, first 

 about 1 mm. long, second equalling the tloret, 2-Z.3 mm. long; 

 floral glume and palea equal, the former 1-nerved. 



Texas (Presidio County), NeaUey for U. 8. Dept. Agricul. in 

 1800. 



Texas and Iiulian Territory. 



3?. S. capillaris Vasey, Contrib. U. S. Nat. Herb. 1:283 

 (181(3). 



A rather sleiuler erect tufted perennial with few culms. 30-GO 

 cm. high. Sheaths slij'htly compressed, longer than the iuternodes, 

 throat eiliate; ligiile very short; blades of sterile shoots numerous, 

 3-30 cm. long, the 1)ase flat or involute, 2-3 mm. wide, the point 

 longaiul filiform, those of the culm 3 in number, the upper liliform, 

 1-3 cm. long. Panicle exserted, often ovate or ])yramidal. 10-18 

 cm. long; rays mostly single, some in ])airs, the longest 4-7 cm. 

 long, the brandies diverging, very slender. Spikelets dai'k lead 

 color or brown; empty glumes broadly oval, first about O.o mm. 

 long, second 1-nerved, 1 mm. long; tloral glume broadly oval, 

 l-nerv(!d, sometimes with an obscure nerve on each side, obtuse 

 when spread. 1.5 mm. long; palea emarginate, as broad and nearly 

 as long as its glume. 



Mexico (Jalisco), Palmer 512; Pringle 1426. 



Found so far only in Mexico. 



3S. S. Buckleyi Vasey, r.ull. Torr. Club, 10:128 (1883). 



Culms slender, com])rcssed, solid as in Maize, 40-00 cm. high. 

 Sheaths compressed; those of the culms about 4 in nuud)er, with 

 sheaths nearly as long as the internodes; ligule a short eiliate fringe; 

 blades smooth, those of sterile shoots two-thirds as long as the culm, 

 flat or conduplicate. 3-4 mm. wide. Panicle but little exserted, 

 open, oblong, lax, 15-25 cm. long, rays single or in twos, cajiillary, 

 the lower the longer, 8-10 cm. long, flower-bearing for the upper 



