44.2, GRAMINEX (Stapf). { Tricholena. 
similar substance. Lodicules 2, very small. Stamens 3. Style 
free, slender; stigma densely plumose, laterally exserted. Grain 
oblong-ellipsoid, closely embraced the valve and pale ; hilum 
basal, punetiform; embryo about } the length of the grain. 
Pe ‘ange cian annual; blades linear to setaccous; ligule a fringe of hairs ; 
panicles o contract ted, often much divided, with capillary branchlets and 
pedicels the bt tter with thickened tips ; spikelets —s ara enveloped by 
soft shining hairs, rarely pubescent or quite glabro 
Species 10-12, chiefly in the dry and hot countries of the Old World. 
Spikelets — or villou 
Upper glume and lower eas more or less gibbous at or 
Coe. the cals, 2-3 lin. long: 
hava from compact tu tufts ; blades eimaaar 3 panic 
w, more or less spike-like ; = of Lake ’ 
Ritts ‘hairy ; nas silky villou (1) setifolia. 
oe usually rather af fsccle blades flat, e 
rely convolute; panicle open (at least tem- 
pora rily) ; tips of patos with ine hairs : 
rate kelets silky villous = ua 42) 
pikelets adpressedly and scantily hairy. (3) seavipile 
Upper eine and lower valve not gibbous, 1 lin. long « or 
rather lon 
Spikelets Toosely villous ; lower glume about 4 as long ‘ 
as the spikele 4) pin se 
Spikelets eta lower glume almost microscopic (5) arenaria. 
Spikelets quite glabro (6) glabra. 
1, T. setifolia (Stapf) ; culms in compact tufts, with oer 
intravaginal innovation shoots, erect or geniculate, $-—l} t. long, 
exserted 5 leaves qmee§ crowded at the base; lower aon com- 
te om 2-4 in. long, gor rhachis ie scabrid or hairy in i 
, tips slig ghtly thickened with slightly lon 
pose ng, 2—21 lin. wide, very densely villous with shining white © 
purple hairs, bakin’ at the base; lower glume oblong, obtuse, less 
than } in. long, hyaline, quite hidden by hairs; ied equalling the 
spikelet, subchartace ous, oblong, minutely emarginate with a mucro 
or short awn from the sinus, 5-nerved, densely so with the hairs 
increasing in length from ‘the base to beyond the middle, then 
glabrous towards “the apex except along the ciliate margins, hairs 
usually adpressed and exceeding the spikelet by 1-1} lin. ; lowe? 
floret g or barren; valve equal and very similar to the uppet 
glume; pale hairy; 3 floret oblong to linear-oblong, 1-1} lin. longs 
