588 
CLVII. GRAMINEJE (Stapf). 
[Urochloa. 
Leaves shortly and finely hirsute to almost 
glabrous ; lower glume more or less 
5-nerved, upper glabrous or pubescent ; 
lower valve 5-7 -nerved ... ... 7. U. Helopus. 
Leaves densely hirsute to villous ; lower 
glume very short, almost nerveless, 
upper hispid ; lower valve 9-13- 
nerved 8. TJ. rudis. 
Perennial ; spikelets lanceolate, acuminate ; 
lower glume 3- or sub-5-nerved, upper 
7-nerved ; leaf -blades lanceolate, 2^-3 
in. by 6-7 lin., glabrous and smooth ... 9. U. setigera. 
Spikelets 1J-1J lin. long ; lower glume 3-5- 
nerved, ij— the length of the spikelet, 
upper 7-nerved ; lower valve 5-nerved ; 
leaf-blades 2§— 9 in. by 4-12 lin. ... ... 10. U. insculpta. 
Spikelets up to 1 lin. long ; lower glume very small, more 
or less truncate, often a nerveless whitish scale ; leaf- 
blades J-2| in. by 2i— &hn 11. U. reptans. 
1. U. bifalcigera A Smpf. Perennial, from a short oblique rhizome 
with intravaginal innovations. Culms suberect, compressed and 
slightly geniculate below, angular, slender, 3-noded, simple, glabrous 
or slightly pubescent below the nodes, internodes very long. Leaf- 
sheaths more or less hairy or the lower villous and bearded at the 
nodes, the basal narrow, slipping off the culm, 2-4 in. long, the upper 
tighter, the uppermost up to 6 in. long ; ligules reduced to a shortly 
ciliate rim ; blades linear from an equally wide or slightly attenuated 
base, long-tapering to a fine point, 5-7 in. by 2 lin., flat, flaccid, pale 
dull green, finely hirsute on both sides, margins delicately carti- 
laginous and ciliate, midrib and lateral nerves (3-4 on each side) 
very slender. Inflorescence of 2 sessile frequently falcate secund 
spike-like racemes, separated by a very slender upwards delicately 
hairy internode which is usually continued into a short subulate 
point. Kacemes 2-seriate, 2J-3J in. long, simple ; rhachis much 
flattened, thin, herbaceous, with the margins curving over the bases 
of the spikelets, up to almost 2 lin. wide, glabrous, margins very 
minutely ciliolate, internodes about \ lin. long ; pedicels extremely 
short, glabrous, with discoid tips, alternately to the right and the 
left, and very close to the delicate midrib. Spikelets laterally 
contiguous or nearly so, lanceolate-ovate or oblong, acutely sub- 
acuminate, 2 lin. long, glabrous or pubescent, straw-coloured or 
slightly reddish or variegated with dull purple. Glumes equal, as 
long as the spikelet, or the lower slightly narrower and shorter, quite 
glabrous or finely pubescent, the lower sometimes with a fine bristle 
from the centre, membranous, 7-nerved, usually with some additional 
shorter nerves in the upper part, all the nerves very slender and 
prominent, particularly upwards, cross-veins very few. Lower 
floret as long as the glumes or almost so : valve lanceolate-ovate, 
quite glabrous or pubescent like the glumes, but also with a 
perfect or imperfect fringe of appressed silvery hairs along the 
