

S2 TRIANDfcIA DIGYNIA 



In max Eliusiw. Vtilffd — Crabgraw. Dog-tail grass- Wire gift*, 

 ftotannual. Ct//wi oblique or procumbeut, 9 to 18 inches lonjt, compressed, 

 smooth branching at base. Leaves some* bat distichous, linear, sparingly \ \\ 5u . 

 Bcahrous near the end .sheaths loose, striate, glabrous, pilose a; throat; liguU 

 vrry short, minutely dentate. Sjpt'Ass 2 to 4, sometimes 6, rarely 1 ; rocftt* err.- 

 pressed, bearded at base, Spikelets closely imbricate, smooth. Upper glum* 

 6-nerved* nerves approximate. Palea membranaceous ; low< r one ovate-lancee* 

 : ttc, with & green keel; upper one a third shorter, somewhat condupli< ate, with 2 

 keels. Seed arillate, or coated with a thin membrane, triangular-ovoid, trans- 

 versa !y corrugated, dark brown. 

 flab. Farm yards, lanes, and along foot paths: common. Fl Aug. Fir. Si ; :. 



Obs. This grass makes a fine carpeting in lanes and wood yards, in the latter 

 part of summer. Cattle and hogs are very fond < f it,- and Mr. Elliott commends 

 it, for hay ; but it rarely grows in mowfn«z grounds, to any extent, with us. It al- 

 ways appeared like an introduced plant, to my view,— though no American Botan- 

 ist speaks of it as such. One or two ether species have been found in the Southern 

 States. 



Div, VI, HonnEAcr.jE — Hordeum, or Hariri? Tribe. 



Ikplorescence Spiked. Spikelets solitary, in pairs, or several together ; our, 

 fete, or many-flotrered. Glumes mostly tico. equal and opposite. Lower palea of- 

 ten axened ; upper one teiih two keels. 



| Glumes 2: * subulate. 



53. SEC ALE. i, JSTutt. Gen. ICO. 

 [Supposed to be from the. Latin, secare, to cut; or from the Celtic, Srga, a sickle.] 



S/nhelets solitary on the teeth of the racbis, 2 to 3-flowercd ; the two 

 lower florets fertile, sessile, opposite ; the upper abortive. Glume* Sub- 

 ulate, opposite, shorter than the florets. Lower palea entire, acumi- 

 nate, bristly -ciliate on the keel, terminating in a very longuwn. Upper 

 palea lanceolate. 



!. 8, cereals, L. Palex smooth ; lower one bristly-eiliate or; the 

 keel and exterior margin ; awns setaceously scabrous. Beck, Bot. 

 p. 415. 



Harvest Secale. Vulgo — Rye. 



Gallice — Le Seigle. Gcrmanice — J)er JRoggen. Hispanicc — Centeno. 

 Root biennial? Culm 4 toft feet high* glabrous, hairy near the spike. Leaves 

 i inear-lanceolate y smooth beneath, roughish on the margin and upper surface, 

 *lau*ou$: sheaihs membranous ner red, smooth ; ligule short* dentate. Spike A to 

 iu'nrhcs long, compressed, linear. Spikelets mostly 2-floicered, itith an awn-like 

 rudiment hettreen the florets. Glumes a little distant from the florets, ojpositc, 

 /'early ejwtl. linear-subulate, scabrous, bristly-pilose at base. Lower palea renin* 

 cose, acuminate, compressed at apex, 5-n erred, terminating in a long scabrous 

 owijkeel and exterior margin bristly-eiliate', inner margin 7iut ciliate, and the 

 nerves on that side less conspicuous. Upper palea lanceolate, acuminate, often bi* 

 fid at apex, and sparingly ciliate on the two keels. Seed oblong, subcylindn'r. 

 Hfeb. Cultivated fells : fr.quent. Fl. June. Fr. July. 



