139. GRAMINE^. 



13. 



i. Spkts. 2-more fld. or if 1-fld. then gls. 5- 



nervecl :— 



t Spkts. not clustered nor spicate or if 



sincate (few EragrodecB) then gls. 



many similar broad: — 



F). gls. 3-7-nerved or nerveless, gls. i 



and ii not much shorter than the 



spkt. Awn geniculate or 0. Gen. 



8, 9 3, 



Fl. gls. 3-nerved, usually many, awn- 

 less, entire or toothed. Gls. i and ii 

 much shorter than the spkt. Gen. 



10-12 4 



tt Spkts. very minute 3-.5-fld. in globose 

 clusters ou an elongate simple rha- 

 chis and subtended by imperfect 



spkts Genus 



ttt Spkts. large sessile 1-more-nate in the 



notches of a simple rhachis. Fig. gls. 



.5-9-nerved. Gen. 14, 15 . . . 



ii. Spikelets 1-fld. or if more than 1-fld. then 



ujjper fls. imperfect or sjjkts. in digitate 



spikes or minute 1-3 fld. and sunk in a 



simple rhachis {Oropetium) or {Sporo- 



bollix) 1-2-fld. and gl. iii 1-nerved : — 



t Spkts. 1-raore-fld, 2-seriate and secund 



on the spiciform branches of a slender 



panicle or on a simjile spike (clustered 



in Gracilea). Fl. gls. all or the lower 



only 2-sexual. Rhachilla produced or 



not. Gen. 16-24 



++ Spkts. 1-fld. (rarelj" 2-fld. in Spofobolus) 

 panicled. Gls. 3 only (rarely 4 in 

 Spot-obolus and then rhachilla jointed 

 at base and gl. iv not hardening as in 

 Panlcecp), (Spkts. jointed on their 

 pedicels in Gamofia and Polypogon 

 and Sporoboliig.) Geu. 25-29 . . " 



2. Glumes normally 4 or i and ii obsolete, iii 

 imperfect or male. Fig. glume hardening or 

 not in fruit. 

 - The following genera 30-32, 36-38 are usually' 

 included in the Fanieacea:. They are some- 

 what intermediate in character between the 

 two groups. In Feiotis and Zoysia the spkts. 

 are jointed on a simple rhachis, but there is 

 only 1 fl. gl. :- 

 «. Spkts. not articulate on the pedicels, but 

 pedicels articulate and upper part or whole 

 falling with the spkts., or in Perofis and 

 Zoi/sia spkts. articulate on a simple rhachis 

 i. Spkts. spicate, 1-fld. only. Gls. 2-3 only . 8 

 ii. Spkts. in decompound panicles with 4 

 glumes, obscuielj' jointed on pedicel, 

 but falling with ])ari of pedicel iii empty 

 hardening, iv membranous with stilf 

 hairs. A large Reed-like grass Genus 36 

 b. Neither .spkts. nor pedicels articulate. Gls. 4. 

 Gls. i and ii usually separately deciduous. 

 Gl. iv subcoriaceous or hardening in fruit, 

 articulate at base : — 

 Spkts. lanceolate or oblong. Gl. iv smallest, 

 lanceolate, subcoriaceous and scaberulous 



in fruit Genus 37 



Spkts. small or minute subglobose or obovoid. 

 Gls. iii and iv similar, usually both fertile, 



Aveneae. 



Eragrostese. 



Elytrophorii)!. 

 Hordese. 



G. Chlorideae. 



Agrosteae. 



PANIC ACEjE, 

 Zoysieae. 



Tht/sanoliBiia, 



Arundinella. 



939 



