458 GRAMINE^. 



^ rStem I to 2 feet : spikes two only, terminal. . . C. lividus. 

 \Stem 3 to 4 feet: pairs of spikes panicled .... . b 



TGlume i of sessile spikelet deeply grooved at the base. . . 

 b < C. polyneuros. 



(Glume i not deeply grooved C. confeetiflorus. 



Cymbopogon polyneuros Stapf (Andropogon poly- 

 neuros Steudel), Hohenacker 933 ! ; F.B.I, as Andro- 

 pogon sch^nanthus var versicolor Hack., vii 205, LIII 71 ; 

 Wild Rusa oil or Geranium grass. 



A coarse tufted strongly scented grass variegated 

 green and purplish. Stem 3 to 4 feet. Leaves with 

 rounded base. Panicle 6 inches ; sheath I inch, coloured 

 green and blackish, with the characters given above. 

 Spikes 3/4 by 1/6 inch, at length divergent. Spikelets 1/5 

 inch, rachilla and stalks very hairy. Male spikelet : 

 stalk bearded and expanded above into a thin oblique 

 membranous cup ; glume i with nine strong, broad nerves, 

 and with a deep indentation in the lower half ; gl. ii. 

 one-nerved, ciliate ; gl. iii hyaline with ciliate margin. 

 Female spikelet : gl. ii with a narrow wing attached at 

 the back. 



Nilgiris : Gotacamund, Pykara, etc. Fpon 2709. 



Cymbopogon confeetiflorus Stapf (A. nilagiricus 

 Hochst.) ; F.B.I, as A. nardus var nilagiricus, vii 206, LIII 

 72 ; Wild Citronella grass. 



Stem 3 to 4 feet. Leaves 2 to 4 by J4 to % inch, 



glaucous beneath : ligule firm. Panicle 10 to 12 inches. 



Spathes (subtending pairs of spikes) J^ inch, acuminate. 



Glume i of sessile spikelet flat or with a shallow, not 



deep, groove in the lower half. Awn of glume iv ^ 



inch, slender. 



Pulneys : in and round Kodaikanal. Bourne 1346, 1347. 

 Nilgiris : at lower levels. 



Cymbopogon lividus Stapf (Andropogon lividus 

 Thwaites) ; F.B.I, vii 209, LIII ^^ ; Purple grass. 



