AsRosTis. TEIIANDRTA. DIGYNIA. 89 



Hab. In sandy swamps in the pine-ban-ens of New-Jersey, 

 September. 



Allied to A. juncea^ but differs in the compressed culm, 

 pvate stipule, and the panicle with alternate not verticillate 

 branches. It differs from A. comfiressa in its shorter leaves, 

 more capillary panicle, and calyx half the leni^th of the corolla. 

 Perhaps Pur ah confounded it with his X.juncea. 



10. A. juncea Mich.: leaves straight and erect, con» 

 volutely setaceous; panicle oblong-pyramidal, verticiilate ; 

 flowers awnless ; calyx half the length of the corolla. M i c h, 

 Fl. I. p. 52. nee Lamarck, Pursh FL I. p. 64* 

 Elliott Sk. 1. p. 1 37. A. indica M u h l. Gram. p. 71. 



Root perennial. Culm I — 2 feet high, erect, slender, terete, 

 smooth. Leaves 2 — 6 inches long, I line wide, smooth, con- 

 cave, convolute when dry, a little glaucous on the upper sur- 

 face ; margins roughened. Shea'fis much shorter than the 

 joints. Stifiule a membranaceous margin. Panicle verticil- 

 late; branches in each whorl about 6. Calyx purple; glumes 

 lanceolate, acute, glabrous; the inferior only half as long as 

 the superior glume. Valves of the corolla nearly equal, and as 

 long as the superior glume of the calyx. Anthers and stigmas 

 nearly white. JVectariea obovate. Ell. 



Hab. In barren sandy places ; New-Jersey to Florida. Pursh, 

 In Pennsylvania. Muh I enberg- (Cat. ed. 2.) October. 



This grass has not come under my observation. The de~ 

 tailed description I have taken from £llio t t's Flora. 

 Roemer fJf Sc hultes have followed S/irenget in re- 

 ferring the A. juncea of Mich an x to the A. tremula of 

 Willd., which appears to be quite a distinct species, and near 

 to A. indica. 



11. A. i)irginica L. : cillnris numerous, procumbent at 

 the base, assurgent ; leaves subdistichous, involute, rigid ; 

 panicles lateral and terminal, spikeform. the lateral ones con- 

 cealed ; calyx equal, about as long as the corolla. Willd. 

 S/jec. 1. p. 373. Walt. Car. ^.11. E Ui o 1 1 Sk.\. p. \39. 

 Muhh Gram. p. 74. R o em. ^ S c hu 1 1. II. p. 354. 

 A. pungens Pursh Fl. 1. p. 64. excl. syn. 



Root fibrous, perennial ? Culms somewhat cespitose, sometimes 

 procumbent, geniculate, simple, rigid ; joints distant. Leaves 

 2 — 3 inches long, erect, hairy at the base, somewhat filiforra 

 at the point, but pungent. Sheaths swelled with the inclosed 

 panicles, smooth. Stifiule 0. Panicles oblong, compressed ; 

 branches simple, alternate or in pairs, 1 — 2-flowered. Glumes 

 of the calyx nearly equal in length, snxooth, acute, carinate ; 

 the inferior narrower, lanceolate; the superior ovate-lanceo- 

 late. Corolla a little unequal, pubescent, awnless, ovate, acute ; 

 the inferior valve shorter and the length of the calyx, carinate; 

 the superior 1 -nerved. Stamens 3 in the terminal panicles; 

 in the lateral panicles ; anthers purple. Styles 2, appruxi- 

 12 



