426 v clvii. gramine^ (Stapf). 
Spikelets very loose, on spreading pedicels, 
with long fringes of hairs 
Racemes solitary or in pairs or false whorls on jj 
rather long and slender common axis, more 01 
less stiffly spreading : pairs of s*pikelets rather 
scattered, apparently glabrous ; blades thin , 
flaccid, up to 5 in. by 7 lin. 
**Annual. 
Racemes in a succession of 6 or more whorls or false 
whorls on a slender common axis 2|-1 in. long, 
bare and loosely plumose at the base ; pairs of 
spikelets rather scattered ; blades thin, flaccid, 
4-9 lin. wide ... 
Racemes digitate or subdigitate or if on a more 
elongated common axis then not in a regular 
succession of whorls and not plumose at the base. 
Spikelets acute or acuminate with smooth nerves. 
Spikelets f-1 lin. long ; rhachis lin. wide, 
frequently with some long spreading very fine 
glistening hairs ; blades thin, flaccid, 2-6 lin. 
wide 
Spikelets 1-1£ lin. long; rhachis §--l lin. wide, 
without long spreading hairs ; racemes 2-6 
in. long ; blades slightly firmer and on the 
whole narrower (2-4 lin.) 
Hairs of spikelets more or less appressed, 
white or silvery 
Hairs of spikelets often accompanied by 
yellowish bristles, both spreading at 
m atu rity into rigid fringes ... 
Hairs of spikelets 0 
Spikelets with a very acute often curved acumen and 
rough nerves, 1-1-|- lin. long ; racemes 6-8 in. 
long, stiff ... 
( b ) MONODACTYLiE. 
Only species 
(c) Calvulje. 
Spikelets over 1 lin. long, 2-4-nate, rather loosely arranged, 
their upper glume equalling three-quarters to the full 
length of the fertile floret, but leaving the sides un- 
covered ; racemes rarely over 5 in. long ; rhachis 
trigonous throughout. 
Common axis of racemes short ; spikelets 1| lin. long, 
the tips of their hairs not abruptly globose. 
Leaf -blades at length unrolling, up to 2 lin. wide ; 
culms compressed 
Leaf-blades setaceous, lin. in diam. ; culms terete 
Common axis long with the racemes racemosely 
arranged ; spikelets up to If lin. long, the tip of 
their hairs abruptly globose, resembling the heads 
of pins 
[ Digitaria . 
[phara. 
5. D. mncroble- 
6. D. Pearsonii. 
7. D. Perrottetii. 
8. D. horizontalis. 
9. D. marginata. 
var. Linkii. 
[ata. 
var. firnbri- 
var. nubica. 
[■ tissima . 
10. D. acumina- 
11. D. monodactyla. 
12. D. compressa. 
13. D nardijolia 
14. D. capitipila . 
