386 POACE/Til. 



Tliia form is found only in eultiviition in tlie teniiMTiite regions 

 of tlio world. See A. /(ifiui for a reference to experiments showing 

 tluit (!0inmon oats have been or may be derived from that sjieoies. 

 \\y cultivation and selection tlie grain has become larger, the awns 

 removed or much reduced, the hairs have left the llorets, which are 

 often light in color. 



8. A. miKvis Roth, Tent. Fl. Germ. 1:40 (17S8). 



A smaller species or race, with short spikelets, alumt 13 mm. 

 long, cultivated in mountainous districts of Eurojic, where the 

 seasons are cool and short. 



9. A. OKiENTALis Schreb. Spicil. 52. Tahtarian Oats. A. 

 tarlarica Ard. Snggi Ace Padov, 2: t. 1, 101 (1789). A. vnUate- 

 rnlis Hrouss. ex \\. &. S. Syst. 2:(;G9 (IH17). 



This name is often applied to cultivated oats in which the pani- 

 cle is narrow and the s{)ikelet8 turned to one side. 



10. A. NUDA L. Amoen. Acad. 3:40 (1759). A. Cliincnsis 

 Fisch. R. & S. Syst. 2:669 (1817). Bohemian Oats. Naked 

 Oats. Pilcok\. 



A smooth annual about GO cm. high. Panicle 20-40 cm. long, 

 erect, spreading mainly in one direction. Spikelets 2-5-flowered, 

 the 2 lower florets sei)arated 5-6 mm. by a long smooth internode 

 of the rachilla; empty glumes about 2 cm. long, 9- and 11 -nerved 

 respectively, much shorter than the spikelet; floral glume mem- 

 branous (not firm), 13-nerved, over 2 cm. long, often leaving the 

 ripened grain, awnless or with a short awn; palea 1.3 nmi. long, 2- 

 toothed, finely ciliate on the nerves. Grain liairy, easily escaping 

 from the ripe floral glume and })alea. 



This is cultivated in China, and was at one time occasionally 

 raised in gardens as a curiosity. Numerous cases of swindling were 

 ]n-acticed by selling these oats to farmers of the northern United 

 States about 1885-8. 



79. (163). Abbhenatheettm Reauv. Agrost. 55, t. 11, f. 5 

 (1812). 



Spikelets 2-flowered, in loose panicles, the lower floret stami- 

 nate, the upper perfect or pistillate, rachilla hairy, articulate below 

 the lower flower and produced into a short point or bristle above 



