Panulc rtltiiih'r. K-I^riii. loii;r; lirst ;'limic T iiiiii. loiiju, HiK'oiul G 

 tiiiii. U*\i}i; iiwiis (>r llorct I..') nun. U>u<^. 



NorilicuMl Kloriilu, ('niiit<,i '.U'i*.*; ^liMim\i\n, '/'nirif \',\:\\ Now 



ir». A. oligantha MuUs. V\. Mor. Am. 1:41 (iso.l). .1. A,f. 

 ftiriisioHi'M Willi, Kl. Cur. 74 (1188), not L. (hivlariii (i/{i/<iii///tf 



lU'uiiv. A;ri-osi. :>(! (isr,'j. 



AppiiD'ntly iinnniil ; riilnis with tumid nodes. s|mi'in;j:ly liranclicd. 

 'iO-50 nil. Iii;;)). Slicatliri iil)ont a.s lon<; as the inlcrnodcs some of 

 which uiH' naked, as the hranciies crowd the sheaths; li;;iile \crv 

 short, with a few hmj; hairs ahove it. Panicle loose, few-lhiwi-red. 

 racemo.se, lO-lT) cm. lon^'. Knipty jjiunies nearly e(|nal. 'i cm. 

 lonjf, llrsl Jl-.^-nervi'd. with a very short awn. second I-iierved, with 

 an iiwn I cm. lon«i:; lloret ir» mm. lon<,'; awns diver^'infi; when mii- 

 ture, the central one 4 cm. lonjj. the lateral ones ii little shorter. 



District of Coliimhia. McCari/ty; Ma.ssachu.sett8, ('. JJ. Fiuon 

 8; Mississippi, Tniri/. 



Vir^'inia. Illinois, .\rkanaas and southward. 



Var. nervata. Kmpty ;,dumes shorter thuu the lloret, iirst T- 

 nerved, tlie divergent awns \-i cm. lon^. 



()re<;on ((Jrant'rt I'as;;), /Imrc/L 



10. A. Palmeri Va.sey, Hull. Torr. Club. 10: 4'^ (1S8;J). 



Perennial; I5-;U) cm. hi^'h. Leaf-hlades involute, setaceous, 

 the lower '^-5 cm. l(.n;r, some of those altove lO-T,* cm. loiiir. 

 Spikelets S0-1()() to a culm in .some cases, in terminal and lateral 

 j)anicles, 12 cm. lonjiif, (> (!m. wide; l)ranclies sctahrous. Some of the 

 lower spikes often nu)re or less reduced or abortive. Spikelets 

 mostly in pairs; lirst glume linear-lanceolate, l-nerved. al)out ',' 

 mm. long. 1 mm. wide; second membranous, narrowly linear. S-!) 

 Him. long; lloret (iylindrical, 4 mm. long, the awns nearly e(iual, 

 erect or diverging, 10 mm. long. 



Colorado, Junes 4138; West Texas, Ilavard; Nebraska,, 

 Dupij. 



Nebi'aska. Arizona and Texas. 



17. A. virgata 'i'rin. Sprang. Neue Entdeck. 2 : 60 ( ). 



Culms erect, slender, naked above, sparingly branching belnv.'. 



