AUHOSTIDK.K. 3()9 



Arizona, Toum'i/ 740, Jonch 4'^11); Mexico, Pringh 1427, '^:UG, 

 2:^0(5. 



4. E. grandis (Vascy). Miihlenbvryia grandiii Vusey, Contrili. 

 U. S. Nat. Ik'il). 1:-.'S:{ (l,s!t:j). 



All eroct stout Ii>.'lit <,'ri'en iRTcnTiial, 120-lUO cm. hi;,'It. Ciiliiis 

 solid, roiiiiire.sseil. Slieaths llattuneil; ligulo lirni, 11-5 nun. loiii;-; 

 bhuU'S revolutc or involute or coiului)li('ato, lianl, scabrous, 40-70 

 cm. lout,', .')-!() mm. wide. Panicle terminal, linear-lanceolate, 

 brownish-yellow or i)uri)le, 40-70 cm. long; rays erect, 10-1 ;J cm. 

 lon^f, numerous and freely branching and with the spikulets con- 

 cealing the main axi:4, llower-bearing to near tlio base. Spikelets 

 on pedicels 1-4 mm. long; empty glumes ecpjal, scabrid, ovate- 

 laiu-eolate, nerveless or very obscurely 1-nerved, about 2 mm. long; 

 iloral glume ovate, acute, obscurely 3-nerved, about 2 mm. long, 

 the awn 10-18 mm. long; palea as long as its glume. (Jrain linear, 

 1.4 mm. long. Nearly allied to E. (listichojtlijilhi \'asey. 



^lexico, Palmer ol'>, 515a, Pritiglc 1700, 2?()5. 



5. E. macroura (Kunth) Henth. Journ. Linn. Soo. 10:87 

 (ISHl). China marroura Kunth, IJev. (iram. 1 : G7 (1829). C. 

 .strirfa Kunth, IJev. (Jram. 1:07 (1829). 



Perennial; culms erect, rigid, simple, smooth, 

 90-120 cm. high. Sheaths nearly smooth; ligule 

 lanceolate, split. 2-3 (;m. (I) long; blade long, 

 scabrous above, involute, with long tapering points. 

 Panicle pluml)ous, spikelike, dense, 'JO cm. long, 

 1 cm. broad. First and second glumes lance- 

 linear, equal or subequal, 4-4.5 mm. long; floret 

 3.5-4 mm. long, linear, abruptly acute when 

 spread ; palea as long and as wide as its glume, pj^., ^^^—fijpicm- 

 Anthers 5 mm. long. P«\ macroura. 



Central ^lexico. Parry £• Palmer 919 in ner.) 

 1878. 



Under this name Ilemsley in Biol. Cent. Am. includes No. 940 

 of Parry cS: Palmer. The plant with the latter number in the her- 

 barium of Harvard University is very different: amo the differ- 

 ences the ligule is 6 mm. long, spike 18-20 cm. long; empty 



