Trisetwm.] GRAMINEX (Stapf). AT1 
2, shale equal or more or less unequal, acute, keeled, lower 
vag 
Valves equalling or exceeding the glumes, membranous with hyaline 
tips and broad margins, acutely 2-toothed, sometimes with fine short 
bristles from the teeth, faintly or obscurely 5-3-nerved, awned ; 
awn from the back near the tip, fine, straight or kneed and twisted 
below; callus minute, more or less hairy or glabrous. Pales shorter 
than the valves, 2-keeled, 2-toothed, hyaline. Stamens 3. Ovary 
glabrous ; cael distinct, very short ; stigmas laterally exserted, 
plumose. Gra oblong, whitish, soft, embraced by the usually 
port brielaiin back of the valve ; hilum basal, short ; embryo 
erennial, rarely annual; blades flat, usually flaccid; ligules hyaline ; 
roe usually contracted, often spike- like, rarely open a and lax, more or less 
gis = 
Species 50-60, mainly in the temperate region of the northern a aaah ; 
and au the Andes to Patagonia; a few in Australia and New Zealand. 
1. T. pumilum (Kunth, Rév. Gram. i. 102); annual; culms 
fascieled, slender, geniculate, ascending or suberect, 2-9 in. long, 
glabrous or hairy below the lower nodes, smooth, 3-4-noded, simple 
z the len — of the 
grain about $ lin. long. Kunth, Enum. i. 297; Trin. Gra m. ye 
,and in Mém. Acad. Pétersb. sér. vi. iv. 16 ; Steud. Syn. Pl. Glum. 
1. 227 ; Durand & Schinz, Consp. Fl. Afr. v. 840. Avena pumila, 
Desf. FI Fl. Atlant.i. 103. Keleria phleoides, ‘Nees, Fl. Afr. Austr. 
428 (tn part), not Pers, 
Oast REGION : Ceres Div.; between Hex River Mountains and the Warm 
Bokkeveld, 3000-4000 ft. , Drige, 532! 
ENTRAL ReGion : Bessubers Div. ; near the Dwaal River, Burchell, 1473! 
Pi aca parts of the Mediterranean region; probably introduced into Cape 
tm to Keleria phleoides and often confounded with it. (See under that 
es, 
