Briza.] TRIANDUIA — DIGYNfA. 17 



mens only andawned; lower, perfect and awnless. Fruit covered 

 by the indurated cor. — Named 6>.xoc, from tXxw, to extract ; be- 

 cause it was supposed to have the property of drawing out 

 thorns from the flesh. 



29. Arrhenatherum. (Tab. I. f. 18.) Patiicle hix. Cal. o£ 

 2 valves, 2-flowered : lowermost floret with stamens only and a 

 long- twisted awn above the base ; upper one perfect with a short 



straight bristle below the point Named from a^^yjv, 7nale, and 



a&rio, an axon. — This genus has altogether the habit of Aventtf 

 from which it differs in the number and structure of its florets. 



30. HiERocHLOE. (Tab, I. f. 19.) Pawjc/e mostly lax. Cal. 

 of 2 valves ; 3-flowered. Cor. of 2 valves : the lateral Jiorets tri- 

 androus,/)2s^27 0; terminal (^or central) one perfect, diandrous. Br. 

 Cor. permanently membranous. Fruit free. Sm. — Named from 

 'i-^rjc, sacred, and p^Xoa, or yj.ori, a. grass : so called by Ginelin, 

 because, in some parts of the Prussian dominions, it is dedi- 

 cated to the A'^irgin Mary, and strewed before the doors of the 

 churches on festival-days, as the Sweet-Jiag (^Acorus Calamus^ 

 is in England. 



• 31. Sesleria. (Tab. I. f. 20.) Panicle spiked. Cal. of 2 

 valves, nearly equal, somewhat awned. Cor. of 2 valves : the 

 outer jagged andawned; the inner bidentate. Frnitfree. — Named 

 from Leonard Seshr, an Italian Physician and Botanist. 



82. Panicum. (Tab. I. f. 21.) Paw?We spiked ; spikes com- 

 pound. Cal. 2-valved, unequal, 2-flowered : ext. valve minute, 

 sometimes obsolete- Florels dissimilar : ext. with anthers only 

 or neuter, 1 — 2-valved; ext. valve with the texture of the calyx; 

 int. perfect, 2-valved, cartilaginous, enveloping, and somewhat 

 adhering to, the fruit. Br. — Named fvom panis, brccul ; the seeds 

 of some species being used for bread. 



33. Setaria. (Tab. I. f. 22.) Pa«?c/e in a dense, cylindrical 

 spike. Flowers as in Panicum, only subtended by a bristli/ invo- 

 hicre, which includes 2 — 3 florets. — Named from seta, a bristle. — 

 To this genus the true Millets belong. 



-f-f -|- Calyx 3- or, mostly, many -flowered. 



34. PoA. (Tab. I. f. 23.) Panicle lax. Cal. 2-valved, shorter 

 than the florets. Cor. 2-valved, valves subovate, bluntish, awn- 

 less. Fruit free. — Name, rroa, grass or pasturage, from rra'jj, to 



feed; the whole genus affording .in abundant pasturage for cattle. 



35. TfiioDiA. (Tab. I. f. 24.) Panicle racemed. Ca/.2-valved, 

 many-flowered, nearly equal. Cor. 2-valved; ext. one with three 

 nearly equal teeth, the middle one straight.— Named from r^u;, 

 three, and obovc, a tooth. 



36. Briza. (Tab. II. f. 25.) Panicle lax. Cal. 2-vaIved. 



VOL. I. C 



