278 
cl vii. GRAMiNEiE (Stapf). [Cymbopogon. 
/ 7. C. divaricatus, Stapf. Perennial, 1J-2 ft. high, densely cses- 
pitose, with, intravaginal innovations, coated with persistent sheaths ; 
root-fibres few, coarse. Culms slender, erect, terete, simple and 1- 
noded below the panicle (the node at about the middle), glabrous, 
smooth. Leaf -sheaths very firm, terete, glabrous, slightly rough, 
or the upper almost smooth, the basal 1J-3 in. long, tough and 
long-persistent, somewhat widened downwards, the cauline rather 
tight and shorter than the internodes ; ligules subhyaline, truncate, 
ciliolate, 1 \ lin. long ; blades very narrow, linear, setaceous and curled 
or fiexuous upwards, to over 6 in. by J lin., folded or channelled in 
the bud, then broader, finally flat, hard, glaucous, glabrous, finely 
rough on the back, smooth and whitish on the face, margins smooth 
or almost smooth below, scaberulous upwards, midrib and nerves 
fine, inconspicuous above, slightly raised below, the white band of the 
upper side corresponding to a zone of spongy tissue. Spatheate 
panicle loose, narrow, from a few in. to almost 1 ft. long ; internodes 
up to 4, rarely 5, the lower up to 3 in. long, rarely longer, upper gradu- 
ally decreasing ; primary branches forming about 3-rayed tiers, rays 
finely filiform, 2-1 in. long, at length subequal, glabrous, very slightly 
scaberulous near the tips ; spathes herbaceous, glaucous or tinged 
with purple, narrowly lanceolate, acuminate, 2-1J in. long, the 
lower with a herbaceous filiform and setaceous blade. Spatheoles 
very narrow, acute, 1J-1 in. long, scarious, straw-coloured or pale- 
purple ; peduncles 3-8 lin. long, scaberulous upwards, tips truncate, 
subcupular. Racemes 2-nate, divaricate, often at right angles or 
epinastically deflexed, f-1 in. long, more or less villous, tinged with 
rich violet, one subsessile, the other with a short linear bare base, 
almost up to 1 lin. long, both bases scaberulous, that of the sub- 
sessile raceme short and stout, the adjacent pedicel swollen, oblong 
or barrel-shaped, hard, glabrescent and often glossy; fertile joints 
1| lin. long, glabrous on the back or nearly so or pubescent up- 
wards, densely ciliate on both sides, cilia up to 1 lin. long, or some of 
the uppermost almost 2 lin. long, snow-white, tips cupular, oblique, 
auriculiform, denticulate ; adjacent pedicels very similar. Homoga- 
mous or imperfect spikelet 1 at the base of the sessile raceme more 
like the fertile spikelets than the pedicelled. Fertile spikelets tightly 
wedged in between joint and pedicel, linear to lanceolate-linear in front 
view, long-acuminate, almost 34 lin. long, greenish to violet-purple, 
glabrous, callus short, obtuse, shortly bearded. Glumes subeqnal, 
chartaceous, lower minutely 2-dentate, concave on the back below 
the flat acumen, keels obtuse, stout and smooth below the middle, 
with or without a small gibbosity between them at the usually 
yellowish base, acute and finely scaberulous in the acumen, intra- 
carinal nerves 2 in the upper part, short and faint, indexed margins 
less than half the width of the back ; upper glume narrowly lanceo- 
late in profile, acutely acuminate, gently curved on the back, 3- 
nerved, ciliate. Lower floret reduced to a linear-oblong hyaline 
