662 GRAMINE# (Stapf). [Lhrhartu. 
Empty valves very dissimilar; lower minute, 
3 the length of the upper or less, 3-5-ribbed 
or nerve, Pe Ag between the ribs or nerves : 
Culms coarse, almost woody below; blades 
ved een spikelets in 5- 12-spiculate 
Glumes about 4 the length of the _ 
(8) rupestris 
mes }-3 § the length of = spikelet .. (9) setacea. 
a a blades ery fine ; ; spikelets 
pyrene ty "cen or sc olitary on 
delic ate peduncles 
Glumes ponmaniee . be _length of the 
spike rs subqua 
jes, Rv iin. hia, in 2— iiveeuate 
sie es . (10) tricostata. 
Spikelets 2 in, long, solitat ry on 
icate rather long ped nagioeh a ee Dodii. 
Glumes pee alling velit s line 
lanceolate to Tinea ong an 2) uniflora. 
Empty valves similar, grit conspicuously 
shorter and narrower, ‘but then more or less 
like the upper in substance : 
Spikelets 1-2 lin, meng to 24 oi ane 
smpty . valves obtuse or tru 
mucronate, rarely subacuminate, ee shes 
not exceeding 14 lin. in leng 
Empty es very similar and sub- 
pe hae “distinctly exserted from the 
glume 
Perennial Day ag 4-25 lin. 
long ; s s6 (13) erecta. 
Annual ;sx erected We lin. long ; 
stamens (14) delicatula. 
Em wae valves unequal, “ower about 
Mere length of the upper and very 
rrow, upper about equalling the 
as mes : 
Perennial with basal ated of villous 
ses valves glabrou . (15) melicoides. 
ual ; expty st hairy .. (16) brevifolia. 
Spikelets 27 lin. ong : 
iis for s 2-4 ie long; glumes and 
mp ae valves subequal ; upper empty 
x fertile valves hinged together by 
an ue appendage on a pivot- 
like knob ; 
Annual; empty valves hair y é 
equal, subcaudate . (17) pusilla. 
Perennial : 
ahs per eceeraths blades flat 
volute: 
eas valves long hairy (18) calycina. 
Empty valves glabrous : 
Spike 
ra- : . 
ceme, 3-4 lin, long... (19) subspicata. 
— “ 
e flexuous Yhachis 
