8 CLXXiii. GEAiiiNE^. (J. D. Hooker.) 



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



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

 Infl. subpanicled ; spikelets many-fld. ; empty gl. shorter 



than the lowest flg. gl. I 3-nerved, II 5-nerved ; 



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

 Infl. capitate in the (Indian sp.) ; spikelets few or many- 

 fld. ; empty gls. shorter than the flg., I 1-3-nerved, 



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



concave 107- Coexachteum. 



Spikelets sessile on the spiciform branches of a tall, broad 



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



Subtribe V. Melioe^e. Spikelets nsually panicled, 1- or more-fld. ; gls. 

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

 Gl. I and II separately deciduous 109. Melioa. 



Subtribe VI. CentothecejE. Spikelets 1- many-fld., 1-2-seriate on the 

 raohis 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. Lophatheeum. 

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



with reflexed submarginal bristles .... 111. Centothbca. 

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



simple spike ........ 112. Stbeptogtne. 



Subtribe VII. ETjrESTTrcB.s. 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 

 ^leuropus in crowded spikes.) 



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



mauy-nerved. Prostrate, leaves risid, pungent . 113. iElBUROpus. 

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



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

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



keeled, tips membranous. Annuals. . . . 115. Scleeochloa. 

 Spikelets very small, in a narrow panicle with erect 



branches, awnless. Annuals ..... 116. Schismus. 

 Spikelets ovate, in a lax pyramidal panicle, pendulous ; 



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



dorsally convex 117. Beiza. 



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



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



the tip 118. PoA. 



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

 r fig. very broad, truncate, 5-nerved, lateral nerves 



very short 119. Colpodidm. 



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



rounded, B-9-nerved, lateral nerves short . . . 120. Gltcesia. 

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



dorsally rounded, top of ovary miked or hairy . . 121. Eestuca. 

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



awned, dorsally rounded, 5-9-nerved, top of ovary 



lobed villous 122. Bbomus. 



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



2-fid ; style very long, 2-tid . . . 123. DuTniiEA. 



Spikelets spicate, many-fld., mucronate or awned . 124. Bkachypoiuum. 



