598 



convolute, flaccid, 3 — 6-inches long : panicle rather dense, stra-w- 

 colour, linear, contracted : branches of the panicle solitary or several 

 'together : glumes unequal, upper 2-toothed at the apex, mucronate, 

 longer than the subulate inferior one : a-wns spreading. 



On dry lulls. 



SECT. V. AGVROSTIDEiilE;. 



Spikelets l-flowered, sometimes with the joint of the secund floret 

 naked, very small : callus either none or obsolete or present, naked 

 or bearded with very short hairs : inflorescence a raceme, thyrse or 

 panicle. 



GENUS XVIII. ALOPECUEUS. 



Tvlandvia Dig'ynia. Sex: Syst: 



Deriv. Prom Alopex, a fox, and Oitra, a taU, from which it is 

 called Eoxtail grass. 



Gbit. Ckas. Thyrse ovate or roundish, oblong, cyKndric, dense : 

 spikelets at length deciduous, somewhat compressed : pedicels very 

 short, club-shaped : glumes 2, free or more or less connate, equal : 

 valves 1, seldom 2, lower one nearly equalling the glumes, obtuse 

 or obliquely truncate, 5 -nerved, commonly awned at the back : 

 scales none : stamens 2 — 3 : ovary oblong, styles sometimes connate 

 at the base : stigmas linear-narrow : caryopsis oblong, glabrous. 



(1) A. niAifnuTrs. (Oriff.J 



Ident. Griffith Notulffi, III. p. 11. 



Spec. Chae. Ascending : culms geniculate, striated : sheaths 

 lax, exceeding the leaves, glirate, glabrous : ligula oblong, entire : 

 leaves linear, narrow, margins scabrous : panicles terminal, spiciform, 

 cylindrically obtuse : florets densely aggregated, lower ones few, 

 upper solitary, all sessile, obliquely fixed and jointed at the apex of 

 incurved pedicels : stamens 2. 



Assam, on the sandy banks of the Brahmaputra river. 



GElSrUS XIX. VILPA. 



Triandria Di^ynia. Sex: SysU 



Gen. Chae. Juba, panicle or thyrse : spikelets 1 -flowered : 

 glumes 2, either both or only the upper one equaUing the valves or 

 both shorter than them, one or nerveless : valves deciduous, equal, 



