600 POAC'E.^i. 



17. F. parviflora Kll. Bot. S. C. & Ga. 1 : 170 (1816). 



A slentlor T^labrous percMinisil. Chilms geniculate, 30-fiO cm. 

 high. Leaves oi' the i;jihn 4-5 in nunibor, slieaths about tlio length 

 of the internotles; ligule aoiliate fringe, subauriculate; blades invo- 

 lutc-iilifonn, scabrous above, G-13 cm. long, 0.2-0.6 mm. cliam. 

 Panicle scarcely exsorted, narrow, 8-U) cm. long, rays mostly in pairs, 

 the lowest internode of panicle -4-5 cm. long, longest ray 5-S cm. 

 long, bearing 4-7 spikelets on the outer half. Spikelets 4-5- 

 ilowered, about 6 mm. long; cmj)ty glumes lanceolate, even when 

 spread, first 1 -nerved, 4 mm. long, second ;5-nerved, 5 or more mm. 

 long; floral glume 5-nervcd. 5-0 mm. long, lanceolate when spread, 

 awn 4-6 mm. long; j>alea acuminiite. 5.5 mm. long. Anthers 1.2 

 mm. long. Ovary glabrous, stigmas linear. 



Texas, Xealley in 1800 for U. S. Dept. Agricul. 



There is some uncertainty about the correct identification of 

 this grass, though the plant answers well to Elliott's description. 



South Carolina to Texas. 



18. F. ilYSTitix Hoiss. Elench. 8!) (18;{8). F. duriusculn var. 

 HijHtrix lioiss. Voy. Ksp. 2:671 (1845). /'. indUjesta var. Hystrix 

 Willd. IVod. Fl. Ilisp. 94 (1870). 



Culms slender, erect, 8-30 cm. high, the upi)er node 4-6 

 cm. from the roots and concealed. Ligule biauriculate, 1-2 

 mm. long, blades of sterile shoots ascending, curved. 4-0 cm. 

 long, terete, smooth; those of the culm l-l cm. long, 3- 

 ncrved, setaceous, rigid, curved. Panicle 1-4 cm. long, dense, 

 linear, simple, rachis scabrous. Spikelets pedicellate, lanceolate, 

 ;5-5-fi()werod, the longest 7 mm. long; empty glumes une(|ual, acute, 

 dark violet, second lanceolate reacliing Ui the mitldle of the floral 

 glume next above; floral glume 4 mm. long, lanceolate, acute, sub- 

 carinate below the apex, smooth, nerves obscure, green or light- 

 <'olored near the apex, margins scarious, the awn short; palea ob- 

 lojig-lanceolate, acute, 2-toothed, ciliate on the keels. Anthers 2. 

 mm. long. Ovary obovate-oblong, glabrous. 



Michigan, (Hancock,) /'. J]. Woinl. 



Probably introduced from Europe. The description answers 



