Fuirena.\ Cyperacece. 79 



10. FUIRENA, Rottb. 



Annual or perennial, leafy herbs, glabrous or pubescent; 

 1. linear-lanceolate, sheaths entire, with an annular membrane 

 at the mouth; spikelets many-fid., sessile in dense, axillary, 

 peduncled, and terminal clusters; glumes imbricate all round 

 the rhachilla, orbicular or obovate-oblong, membranous, with 

 a stout 3-veined keel, ending in a cusp or stout scabrid awn; 

 hypogynous bristles 3, minute, or o; hypog.-scales 3, enclos- 

 ing the nut, stipitate, quadrate, strongly 3-veined, glabrous or 

 ciliate; stam. 2-3; nut trapezoid, trigonous, narrowed into a 

 stipes below, and into a long or short cusp or beak above, 

 angles acute, sides smooth, pale; style slender, finally decidu- 

 ous, stigmas 3. — Sp. 26; 6 in Fl. B. Ind. 



Annual, 1. hairy. 



Spikelets \-h in., rhachilla slender . . . 1. F. GLOMERATA. 



Spikelets -^-\ in., rhachilla obsolete . . .2. F. UNCINATA. 



Perennial. 1. glabrous 3. F. umbellata. 



1. P. glomerata, Lam. III. i. 150 (1791). 

 Thw. Enum. 347. C. P. 2748. 



Fl. B. Ind. vi. 666. Rottb. Descr. et Ic. t. 17, f. 1 (Scirftus ciliaris). 



Annual; stem 4-16 in., slender, erect, leafy, sparsely hairy 

 above, glabrous below; 1. 2-5 by \-\ in., linear-lanceolate, 

 acuminate, 3-5-veined, more or less hairy, sheaths long, 

 closed; spikelets \-\ in. long, sessile, in terminal and pe- 

 duncled axillary clusters, \-\ in. diam., ovoid or oblong, 

 obtuse, dark brown, rhachilla slender, lowest glumes longest, 

 empty ; bracts o but the leaf under each cluster of spikelets ; 

 glumes closely squarrosely imbricate, at length deciduous, 

 i\ -iV in. long, membranous, obovate-oblong, obtuse, 3-veined, 

 keel ending in a stout hairy awn half as long as the glume, 

 tip ciliolate; scales stipitate, quadrate, 3-lobed, 3-veined, 

 glabrous, lobes obtuse or shortly produced, median longest, 

 base lunate on each side of the stipes; nut 3V in., trapezoidly 

 trigonous, cuspidate, smooth, pale, angles acute. 



Wet places, especially paddy fields ; common. Fl. May, &c. 

 Throughout Tropics of Old World. 



2. P. uncinata, Kimth, Enum. ii. 184 (1837). 



F. ciliaris, Nees in Wight, Contrib. 93 ; Thw. Enum. 347 (non Roxb.). 

 C. P. 3038. 



Fl. B. Ind. vi. 666. 



Annual; stem 4-12 in., rather stout, leafy, glabrous below, 

 pubescent above; 1. 2-6 by \-\ in., linear-lanceolate, acumi- 

 nate, membranous, 3-5-veined, laxly hairy on both surfaces; 

 sheaths long, closed, hairy; spikelets, T V^ in., densely crowded 



