487 Jour., Bom. Nat. Hist. Soc, Vol. XXXIII, No. 3 [May 31, 1929. 



A. Spikelets panicled. 



AA. Rhachilla of spikelets more or less jointed 



and breaking up from above downwards 



I. Panicle spiciform, compact, 5-7*5 cm. by 



8 mm. ; rhachis bearded at the nodes ; 



margins of flowering glumes ciliate ... 



II. Panicle open or more or less contracted ; 



margins of flowering glumes not ciliate 



1. Spikelets 5 mm. long ; panicle large, 



lax, thyrsiform, 20-50 by 10-15 cm. ... 



2. Spikelets 2*5 mm. long ; panicle short, 



compact, cylindric, 12-40 mm. long. 



3. Spikelets 2*5-4 mm. long ; panicles 



5-20 cm. long 



a. Grain ovoid. Stamens 3 

 aa. Not sweet-scented ... 

 bb. Sweet-scented 



b. Grain obovoid. Stamens 2 



BB. Rhachilla of spikelets tough, persistent ; 

 flowering glumes falling away from its 

 base upwards 

 I. Spikelets flat, ovate-elliptic or oblong ; 

 lateral nerves of flowering glumes very 

 prominent, straight, almost percurrent; 

 pales deciduous with their glumes 

 II. Spikelets less compressed, linear or 

 linear-oblong ; lateral nerves less pro- 

 minent. When spikelet compressed or 

 lateral nerves prominent, then with 

 persistent pales 

 In Spikelets more or less fascicled on the 

 primary or secondary branches or 

 shortly pedicellate in narrow racemes 

 aa. Leaves glaucous ; grain oblong. 

 bb. Leaves not glaucous ; grain 

 globose or nearly so 

 2, Spikelets not fascicled; long pedicellate, 

 more or less divaricate when ripe 



a. Leaf-margins glandular 



aa. Lower involucral glume 1-3- 

 nerved ; upper 3-u.erved 



bb. Both involucral glumes 1-ner- 

 ved 



b. Leaf-margins eglandular ; involucral 



glumes 1-nerved 



aa. Spikelets versatile, 2*5 cm. long 



or longer, narrowly linear ; 



branches of panicle solitary... 



bb. Spikelets small, 4 mm. long 



or less 



§ Mouth of leaf-sheath naked. 



§§ Mouth of leaf-sheath 



bearded 



t Perennial. Grain obovoid. 



tt Annual. Grain ellipsoid ... 



B. Spikelets distichously spreading, secund, in a 



long, simple terminal spike 



1. Keels of pale distinctly winged ... 



2. Keels of pale not winged 



1. 



E. cilia ta. 



2. 



E. as per a. 



3. 



E. ciliaris. 



4. 



5, 

 6. 



E. tenella. 

 E. viscosa. 

 E. interrupta 



7. E. unioloides. 



10. 



11, 



E. g angelica. 

 E. stenophylla. 



E. Eragrostis. 

 E. minor. 



12. 



E. tremula. 



13. 



E. tenuifolia. 



14. 



15. 



E. papposa, 

 E. pilosa. 



16. 

 17. 



E. bifaria. 



E. brachyphylla, 



1. Eragrostis ciliata, Nees Agrost. Bras. (1S29), 51?, Obs. 1 {nomen nudum) ; 

 Wight Cat. No. 1788 ; Steud. Syn. Gram. 265 ; Dak. and Gibs. Bomb. Fl. 298 ; 

 Hook. f. in F. B. I. vii, 313 ; Cke. ii, 1022 ; Haines Bot. Bihar and Orissa (1924), 



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