PANICE.E. 113 



sjircadingf, 2-0 om. from ciicli otlicr, some of tlio lowest euclosed. 

 H-O cm. long, riieliis flat or involute, about 2 mm. wide. Spike- 

 lets single, imbricated little or none, sessile on alternate sides of a 

 ridge of the rachis, smooth, elliptical-ovate, ahnost acute, about -i 

 mm. long, first glume broad, thin, obscurely nerved. al)out 1 

 mm. long, second 7-nerved, floral glume of the neuter floret much 

 like the latter. 5-nerved, its palea a little shorter, upper floret 

 rugose, oval, 3 mm. long. This much resembles Paspnlnm. 



Texas, r. S. Ihpf AyricuL No. 88, eolhcted by ,/. Rever- 

 rJion. /;. Ho II. (I. ('. Xonllni. 



11. P. I'LANTACJINEIM Link, Ilort. Berol. 1:200 (1S27). 

 Annual; culms branching below. 30-00 cm. high, from a creoji- 



ing or geniculate base Margins of the sheaths and the ligule 

 ciliate-fringed. sheaths mostly longer than the internodes; blades 

 flat, smooth, 7-15 cm. long. 1-1.5 cm wide. Spikes about four, 

 3-5 cm. long, secund. the lowest ])artly included, the terminal one 

 on a pedicel nearly its own length, the others single, sessile, 2— i 

 cm, from each other. S})ikelets single, alternating in two rows 

 along one side of a narrow rachis. those of the same row imbricate 

 or not, smooth, compressed, obovate-elliptical. about 4 mm. long, 

 first glume very broad, clasping the spikclet, 2 mm. long, 7-uerved. 

 second glume and floral glunu; of the neuter floret e(|ual, broadly 

 oval when spread, the fornu'r J»-nerved, the latter 7-uerve(l, the 

 palea of the latter but little shorter, fertile floret oval, transversely 

 wrinkled, 3.5 mm. long. 



Sparingly introduced and foiiiul on ballast-ground at Philadel- 

 phia. Penn. 



12. P. prostratum Lam. 111. 1: 171 (1701). P. ripspitosnm Sw. 

 Fl. Ind. Occ. 1:140 (17!>7). 



Tufted or creej)ing, much branched below, 30-50 cm. high. 

 Sheaths inflated; blades thin, flat. ])road at the base, hairy as well 

 as the sheaths, 7-15 cm. long, O-IO mm. wide. Si)ikes 5-!», alter- 

 nate, ascending on 2-3 centimeters of the top of the exserted culm. 

 1-2 cm. long. Spikelets alternate in 2 rows on one side of the 

 hairy rachis. overlapping for about one-third of their length, sub- 

 sessile, smooth, oval, awidess. about 3 mm. long, first glunu> thin. 



