180 THE FLORA OF THE ALPS 
farger, bristles russet-yellow; road-sides. S. ambigua, 
Guss., is possibly a hybrid. 
4. TRAGUS, Hall. 
Spikelets of two flowers, the lower neuter, the upper 
bisexual. 
T. racemosus, Desf.; spikelets in a linear racemose 
panicle, with small hooked bristles, leaves ciliate; sandy 
places; Valais. 
Tribe 3. PHALARIDEA:.—Spikelets compressed later- 
ally ; glumes usually 6, uppermost only fertile ; pale o or 
i-nerved. Not alpine. Genera 5-8. 
5. PHALARIS, (L. 
Glumes 6, two of them imperfect, not awned; stamens 3. 
P. arundinacea, L.; panicle elongated, spreading and 
red when in flower; ditches. 
6. ANTHOXANTHUM, L. 
Glumes 6, two of them imperfect, awned ; stamens 2. 
A. odoratum, L., Sweet Vernal Grass ; everywhere. 
7. HIEROCHLOE, Gmel. 
Glumes 6; upper flower bisexual with 2, two lower 
flowers male with 3 stamens. 
H. borealis, R. and S.; flowering glumes shortly awned ; 
water-sides, very rare; Ziirich, Einsiedeln. 
