1008 CXLVII. GR.V'MrXE.l'. 



Awns not articulate on the floral glume, tripartite from the 

 base without a coluum. 



Invol. glumes not awned 1. A. Adscenscionis. 



Invol. -glumes awned. 



Awns of invol. -ghmies \ in long ; spikelets f in. long. 2. A. sefacea. 

 Awnsof invol.-glumes -,V in. long; spikelets | in. long. 3. A. Hystrix. 

 Awns with a twisted column. 



Column of awns articulate on the floral glume. 



Awn plumose 4. A. hirtiyluma. 



Awu not plumose. 



Stems less than 6 in. high ; lower invol. -gliune 5 in. 



long 5. A.hystricula. 



Stems reaching 2 ft. high ; lower invol. -glume \ in. long. 6. A. funiculata. 

 Column of awns not truly articulate on the Ooral glume, 

 though readily separating; lower invol.-glume ^ in, 

 long 7. A. redacta. 



1. Aristida Adscenscionis, Linn. Sjj. PI. (1753) p. 82. Annual 

 or perennial; stems 9-24 in. long, densely tufted, very slender, erect 

 or ascending, simple or branched ; branches erect, smooth. Leaves 

 3-12 by 2V~r^ ^"•' convolute, filiform, smooth or scaberulous ; sheaths 

 smooth, with rounded auricles ; ligule of fine short hairs. Panicle 3-12 

 in. long, contracted, subsecund ; rhachis filiform, smooth ; branches 

 short; pedicels short, capillary. Spikelets erect, |-^ in. long. Lower 

 invol.-glume \ in. long, oblong-lanceolate, acute, membranous, often 

 purple, with a scaberulous keel; upper invol.-glume lanceolate, \ in. 

 long, 2-toothed and apiculate at the tip, the keels smooth ; floral glume 

 \ in. long, 3-nerved, smooth; awns 3, not articulate on the glume, the 

 iniddle one larger than the lateral, |-| in. long; callus long, pointed, 

 hairy at the base ; palea minute, oblong, hyaline, retuse. Fl. B. I. v. 7, 

 p. 224 ; Trim. Fl. Cevl. v. 5, p. 252 ; Woodr. in Journ. Bomb. Nat. 

 V. 13 (1901) p. 439 ; Prain, Beng. PI. p. 1211. Aristida depressa, Eetz. 

 Obs. fasc. 4 (1786) p. 22; Dalz. & Gibs. p. 295; Watt, Diet. Ecou. 

 Prod. V. 1, p. 312.— Plovvers : Oct.-May. 



On dry hills, Dalzell cf- Gihson. Peccan : Poona, Cookcl, Woodrotv; Bowdhan 

 hill near Poona, Woodrow, 38! Gujarat: Jetalsar (Kuthiawar), Woodrow, 43! — 

 J)iSTRiB. Througliout the plains and low hills of India ; Ceylon, most warm countries. 



A troublesome grass for those who have to walk through a patch of it ; the ripe 

 spikelets, which are easily detached, are like barbed aiTows. 



2. Aristida setacea, Retz. Obs. fasc. 4 (1786) p. 22. Perennial ; 

 stem 2-3 ft. high, stout, erect or geniculately ascending from a woody 

 base, with stout wiry root-fibres, hard, smooth and polished, simple 

 or subfastigiately branched. Leaves 6-12 by y^^ in., usually con- 

 volute, coriaceous, smooth ; sheaths long, smooth ; ligule of short hairs. 

 Panicle various, 6-12 in. long, inclined, sometimes subsecund, open or 

 contracted ; rhachis slender, smooth ; branches long or short, the lower 

 sometimes reaching 4 in. long, filiform or capillary, usually fascicled 

 and erect. Spikelets | in. long (excluding awns), erect ; pedicels 

 c-apillarv. Lower invol.-glume awned, ^ in. long (including an awu of 

 V in. long), 1-nerved ; upper invol.-glume a little longer than the lower 

 (with an awn about l in. long), notched at the insertion of the awn, 

 and with hvaline margins, 1-nerved; floral glume j} in. long, 3-nerved; 

 awns 3, inarticulate at the base, 1-1| iu. long, subequal or the middle 

 the longest; callus long, bearded with long hairs. Stamens 3; anthers 



