304 POACE.E. 



two-tliirda. Spikelots i)urple; empty glumes ovate-lanceolate, 

 1-iiervetl. first glume about 1 mm. long, secoml 1.5 mm. long; 

 floral glume ovate, acute when spread, l-uerved, 1.7-2 mm. long; 

 palea hut little shorter than its glume. 



Texas, Xvalley. 



A small i)lant seen from the IT. S. Dept. Agricul. Discovered 

 by Dr. S. H. Buckley, i'or whom Dr. Vasey nauied it. 



39. S. Domingensis (Trin.) Kunth, Enuni. 1:3U (1S3;5). 17/- 

 fi( DdnnnfjvHsi.s Trin. Spreng. Meue Entdeek. 2:50 (IMio). 

 Aijroslis DoniiiKjoisis Schult. Mant. 3: 570 (1S24). 



Culms erect, slightly compressed at the ])ase, 20-40 cm. high. 

 Sheaths crowded, compressed, throat ciliate; lignle very short; 

 blades flat or becoming involute, 7-10 cm. long, 3-4 mm. wide, 

 with filiform points, those of the culm 2-3 in number, the upper 

 1 cm. long or less. Panicle but little oxserted, erect, sj)ikelike or 

 sjireading, G-10 cm. long, rays in threes to lives, the longest 3-5 

 cm. long, naked for a third of its length. Spikelets light lead- 

 color or straw-color; emi)ty glumes scabrid, membranous, first 

 glume 0.()-7 mm. long, second ovate, acute, 1-nerved, 2 mm. long; 

 floral glume like the second glume, only a little shorter; palea 

 broad, enuirginatiN 1.5 mm. long, (jrain broadly oval, 1 mm. long. 



Florida, Cnrtiss for U. S. Dept. Agricul. 259. 



40. S. cryptandrus (Torr.) A. CJray, Man. Ed. 1:570 (1848). 

 Af/rosfis cnjpt(()ulra Torr. Ann. Lye. N. Y. 1:151 (1824). Vilfa, 

 cvupttDulni Torr.; Trin. Mem. Acad. St. Petersb. (VI.) 5:69 

 (1840). 



An erect perennial, 60-90 cm. high, usually branching below, 

 culm solid as in Maize. Sheaths smooth, bearded at the throat; 

 the lowest shorter than the internodes, the upper 02ies longer; lignle 

 very short; blades 7-9 to the culm, flat or involute, scabrous above, 

 15-30 cm. long, 3-6 mm. wide. Panicle 10-20 cm. long, narrow, 

 more or less enclosed in the upper sheath, which is 20-35 cm. long; 

 rays mostly in pairs, often hairy in the axils, spreading, 3-8 cm. 

 long, flower-bearing for the entire length. Spikelets numerous, 

 lead-color, or fading to a straw color; empty glumes acute, 

 1-nerved, first 0.5-1 mm. long, second 1.5 mm. long; floral glume 



