AdltOSTIDK.K. 240 



Ocr, cniitniotcd, A-IO -2(i <;m. Ioii;j, loiif^ost niys iipprosscd. i-»;cin. 

 lon^'. Spikclcts sulMcssilc or on juMliccls \-'i iiiin. loiij,'; (Miiply 

 ^'liiiiics mostly su1km|iiuI. miicnumtc. l-iiorvcd, two-tliinia iis loiigiw 

 the llorct; flonil ^'lumc tliiiily liiiiryon tho lower half, ovate, abrupt- 

 ly sliort-mucroiuiti', or iK'ariiij? a slciultir awn l-O nun. long, 3- 

 nervi'd, l.'j-S mm. lon^'; palou as lon^j us its j;liiim'. 



Tilt' eastern plants have an awnless floral j,'lumo; thoso from 

 Texas have the awn. 



Alabanui, Mo/ir. 



Open rocky woods. New Kn<?huid to Texas. 



i:{. M. breviseta firiseh. Ilenisl. iiiol Centr. Am. liot. 3:5;{(t 



(ISSO). 



A densely tufted perennial, braneliinji; near the base, 10-lS cm. 

 hij,di. Li^'ule 0.5 mm. long; l)lades glabrous, involute, recurved, 

 1.5-3.5 cm. long, 1-1.5 mm. wide. Panicle simple, linear, the 

 base included by tiio sheath, 1-3 cm. long, longest rays half as long, 

 each bearing l-:{ spikelets. S|)ikelots liiu'ar. l.'i-l..') mm. long, 

 tinged with violet; empty gUunes ovate, acute when spread, 1- 

 iiorved, first O.G mm. long, second 1 mm. long; lloral glume cllio- 

 latc on the margins, ovate when spread, mucronate, 3-nerved, 1..*) 

 mm. lotig. 



.N[exi('0 (Miclioacan). /'/•//////*' :{!I44; also, according to Fournier, 

 Mid)l.. numbers UJ3. •^003, '2()'.t3; SItaffiicr 111. 



Di-y cool .soils, and hills. 



U. M.Schreberi (imel. Syst. 171 (ir-ir). Dhoi'-sked. Ximhle 

 AViLL. .]/. (Ilirtisii Schrel). Hesch. (Jrils. 2:143, /. .-)1 (1772-7!)). 

 nUcpjinoii iiiitiiifijlonon Miclix. Fl. Hor. Am. 1 : 40 (1H03). 



Culms slender, hard. dilVuse. much-branched, sometimes genicu- 

 late, 20-00 cm. higli, from knotted rootstocks. Sheaths shorter 

 than the internodes; ligulevery short; blades Hat, thin, .s'-abrid, ])uu- 

 gent-pointed, 3-H cm. long. 2-3 mm. wide. Panicles terminal and 

 lateral, slender, contracted, rather loosely numy-tlowered, 10-lS cm. 

 long: rays slender, in twos and threes, very unequal, the longest 4-5 

 cm. long: spikelets subsessile or ou short pedicels; empty glumes 

 very minute, first obsolete, second truncate; floral glume sparingly 



