8 CLXXIII. GRAMINEJE. (J. D. Hooker.) 



than the lowest, gl. II subulate, 1-nerved ; flg. gls, 



3-nerved ; grain broad, concave .... 105. MYRIOSTACHYS. 

 Infl. subpanicled ; epikelets many-fld. ; empty gl. shorter *J? i 4/9 / 



than the lowest flg. gl. I 3-nerVed, II 5-nerved; ^T r* 7 *' 



rachilla silky ; flg. gls. 3-nerved, grain grooved . 106. HAIOPYRUM. 

 Infl. capitate in the (Indian sp.) ; spikelets t'rw or many* 



fld. ; empty gls. shorter than the flg., I l-3-nevve<l, 



II 5-nerved; fl. gls. 3-nerved, villous; grain broad, 



concave 107. COELACHYRUM. 



Spikelets sessile on the spiciform branches of a tall, broad 



panicle, many-fld. ; fl. gls. 3-4-toothed . . . 108. DIPLACHNE. 



Subtribe V. HELICES. Spikelets usually panicled, 1- or more-fld. ; gls. 

 many, upper smaller, empty, convolute in a clavate mass. 

 Gl. I and II separately deciduous . . . . 109. MBLICA. 



Subtribe VI. CENTOTHECE^E. Spikelets 1- many-fld., 1-2-seriate on the 

 rachis of a simple spike or on the long slender branches of a simple panicle. 

 Leaves broad-, tessellately nerved. 



Spikelets 1-fld., secund and articulate at the base; upper 



gls. empty, convolute with setiform tips . . . 110. LOPHATRERUM. 

 Spikelets 3- or more-fld., secund, persistent ; fruiting gls. 



with reflexed submarginal bristles .... 111. CENTOTHECA. 

 Spikelets 1-4-fld., secund, 2-seriate on the rachis of a 



simple spike 112. STREPTOGYNE. 



Subtribe VII. EUFESTUCE.E. Spikelets usually panicled, 2- or more-fld. ; 

 fl. gls. 5- many- (very rarely 3-) -nerved, upper empty or 0; styles short 

 (except Duthisea). (Spikelets of Brachypodium in long very lax spikes of 

 ^Eleuropus in crowded spikes.) 



Spikelets many-fld., subspicately crowded; fl. gl. broad, 



many-nerved. Prostrate, leaves riarid, pungent . 113. ^LEUROPUS. 

 Spikelets few-fld., in close secund clusters; gl. 1 and II 



shorter than the mucronate or awned flg. . . . 114. DACTYLIS. 

 Spikelets on a short panicle, subsessile, compressed ; fl. gls. 



keeled, tips membranous. Annuals .... 115. SCLEROCHLOA. 

 Spikelets very small, in a narrow panicle with erect 



branches, awnless. Annuals ..... 116. SCHISM us. 

 Spikelets ovate, in a lax pyramidal panicle, pendulous ; 



gls. inflated, awnless, closely imbricate, many-nerved, 



dorsally convex 117. BUIZA. 



Spikelets laxly panicled, few- fld. ; gls. keeled, 5-nerved 



(3- in P. persica'), awnless, nerves rarely meeting at 



the tip 118. POA. 



Spikelets laxly panicled, 1-2- fld., awnless ; gls. hyaline, 



flg. very broad, truncate, 5-nerved, lateral nerves 



very short 119. COLPODIUM. 



Spikelets panicled, many-fld., awnless ; gls. obtuse, dorsally 



rounded, 5-9-nerved, lateral nerves short . . . 120. GLYCERIA. 

 Spikelets panicled, many-fld. ; fl. gls. acute or awned, 



dorsally rounded, top of ovary naked or hairy . . 1-t. FESTUCA. 

 Spikelets panicled, 3- many-fld. ; fl. gls. mucronate or 



awued, dorsally rounded, 5 9-uerved, top of ovary . 



lobed villous . . . . . . . .122. BROMUS. 



Spikelets few, sub-capitate, 3-5-fld. ; fl. gls. 7-11-nerved, 



2-fid ; style very long, 2- fld 123. 1)UTHIJ!A. 



S pikelets spicatt 1 , many. fld., mucronate or awned . . 121. BKACHTFOU1UM. 



