404 
Graminese. 
629. Polypogon. Beardgrass. Ill, 28. 
1. Spikelets arranged in a dense panicle, oblong-cylin- 
dric. — Waste places, near Freibg., probably intro¬ 
duced. 6 . . . . * monspeliensis Desv. 2409. 
630. Agrostis. Bent-grass. Ill, 51. 
1. Lower glume shorter than the upper. Awn 3—several 
times as long as the spikelet. Aperci. , . 2 
— Lower glume longer than the upper. Awn 0 or, at the 
most, twice as long as the spikelet ... 3 
2. Panicle (large) spreading, ovoid. Anthers linear-oblong. 
Stem with 3—5 nodes. A. purpurea Gaud. (Spikelets 
less numerous, purplish.) — Among the corn; distrib. 6 
Spica venti L. 2410. 
— Panicle contracted, narrow, gen. interrupted. Anthers 
orbicular-oval. Stem with 2 nodes.—As the last; western 
Switz. 6. interrupta L. 2411. 
3- Ls all flat. Upper glumella present. Awn gen. 0 4L 
— Ls, at least the rad., folded-bristly. Upper glumella 0 or 
very small. Awn gen. present. (Ligules oblong.) 5 
4. Ligule (especially of the lower leaf) very short, truncate. 
Panicle (gen. violet) with an oblong-oval outline, and ca¬ 
pillary branches; pedicels spreading in every way.— 
Grassy places, woods, water-side; everywhere. 6 
vulgaris With. 2412. 
— Ligule oblong (2—3 mm long). Panicle narrower in pro¬ 
portion than in the last, oblong-conic in contour, with 
rather stronger branches; pedicels spreading at an acute 
angle, only directed to the side and downwards, which 
makes the lialf-whorls appear more distant. Ls broader. 
A. stolonifera Koch.—As the last. 6 . alba L. 2418. 
5. Awn inserted towards the base of the lower glumella. 
(Branches of the panicle rough) .... 6* 
— Awn inserted about the middle of the lower glu¬ 
mella (rarely 0) ...... 7 
6 Panicle oval in contour. Stem 10—30 cm. — Rocky places 
of the Alp. 7 . . . . . alpina Scop. 2414. 
— Panicle lanceolate in contour. Stem 25 — 45 cm.—As the 
1 ast; Alp. (V.) and Jura (Reculet and Faucille). 7 
Schleicheri Jord. 2415. 
7. Branches of the panicle rough. Stem 20 — 50 cm .—Varied : 
Awn gen. notched, exceeding the spikelet, or some¬ 
times straight and shorter, or 0.—Damp places, swamps; 
distrib. but not common (wanting in G. U.). 7 canina L. 2416. 
— Branches of the panicle smooth. Stem 10—20 cm. Spike¬ 
lets smaller than in A. alpina. — Alp. 7 rupestris All. 2417 
OBS. Hybrid: A. cunina-vulgaris (Merc.). 
