CLXXIII. GRAMINE^E. (J. D. Hooker.) 7 



** Spilces or spiciform brandies digitate, racemed or panicled (or solitary in 



Chloris). 



Spikes digitate, 1-fld., upper imperfect fl. . . .88. CYNODON. 



Spikes solitary, spicate or racemed ; spikelets 2- or more- 

 fid., upper fl. imperfect 89. CHLORIS. 



Spikes digitate or wborled; spikelets 3-6-fld., densely 



crowded, awnless 90. ELEUSINE. 



Spikes racemed on a long racliis ; spikelets 2-3-fU., 



awned . 91. DINEBRA. 



Spikes panicled, filiform ; spikelets very minute, alternate, 



1- or more fid., awnless 92. LEPTOCHLOA. 



Spikes very long, filiform, simple or divided; spikelets 



very few, distant, 1-fld., awiied . . . .93. DICH^TARIA. 



Tribe IX. FESTUCACE.E. Spikelets 2- or more-fld., pedicelled, rarely 

 sessile, in effuse or contracted rarely spiciform, panicles ; rach'illa articulate 

 at the base and often at the base of the fl. gls., always produced beyond 

 the uppermost fl. gl. 



Subtribe I. PAPPOPIIORE.E. Spikelets few- or many-fid.; gls. many- 

 nerved, fl. gls. many-awned or 4-5-lobed. 

 Spikelets spicate, 2-5-fld. ; empty gls. 4, 2 upper and fig. 



4-lobed ; fl. gl. with a dorsal awn .... 94. POMMERRULLA. 

 Spikelets in simple or branched spikes; fl. gl. many-awned 95. PAPPOPHORUM. - 



Subtribe II. ARUNDINE^E. Spikelets panicled, 2- many-fld. ; gls. very 

 narrow, flg. penicillate with long silky hairs on the callus or sides or both, 

 lowest fl. gl. sometimes male or neuter. 



Kachilla .elongate, glabrous ; fl. gl. silkily hairy . . 96. ARUNDO. 

 Kacbiila very short ; fl. gls. glabrous, callus with long 



silky hairs ........ 97. PHRAGMITIS. 



Subtribe III. SESLERJE^. Spikelets in spiciform panicles, or in spicate 

 clusters with (in the Indian species) many imperfect spikelets of imbricating 

 gls. at the base of the spike or of the clusters, 1- or more-fld. (Cynosurus 

 has dimorphous spikelets). 



Spikelets in a cylindric spike, articulate on very short 



pedicels ; gl. I and II awned 98. FINGERHUTHIA. 



Spikelets very minute, in globose clusters on an elongate 



simple rachis 99. ELYTROPHORUS. 



Spikelets in a dense unilateral panicle, uppermost of each 

 branchlet 1-fld., concealed by the longer lower empty 

 gls 100. LAMARCKIA. 



Spikelets in spiciform clusters, uppermost of each cluster 

 2-5-fld., lower of distichous subulate empty pectinately 

 arranged gls 101. CYNOSURUS. 



Subtribe IY. ERAGROSTE.E. Infl. various. Spikelets 2- many-fld. ; fl. 

 gls. 1-3-nerved, entire, 3-toothed, 3-lobed or 3-awned. 

 Panicle spiciform ; spikelets 2-5-fld. ; fl. gls. scarious, 



secund, mucronate or shortly awned .... 102. KOELERIA, 

 Panicle efluse ; spikelets 2-4-fld. ; gl. I very short, 3- 



nerved, sub 3-toothed, fl. gl. broadly truncate, 3- 



nerved j- 103. CATABROSA. 



Infl. various'; gpikelets many-fld. ; empty gls. shorter 



than the lowest flg. gl., 1-uerved ; flg. gls. 3-nerved ; 



grain very minute, terete 104. F;;AGROSTIS. 



Infl. pyramidal ; spikelets many-fid. ; empty gl, longer 



