Gramme®. 
407 
— Awn fairly straight, gen. shorter than the glumella or 
scarcely exceeding it (rarely 0) . . . 2 
2. Panicle pyramidal, the axis and branches more or less 
scabrous. Spikelets 3—5 mm long, variegated with brown, 
white and violet, or, in the shade (v. altissima Lam.), 
yellowish green, 2- (rarely 3-) fid.—Varied with larger 
and darker spikelets, and the awns rather longer: b. lito- 
ralis Gaud. —Damp, grassy places, woods; distrib. b. by 
the lake of Geneva and the Rhine below SchafFh. 6 
csespitosa Beauv. 2434. 
Panicle narrower and longer than in the last, often inter¬ 
rupted; axis and branches smooth. Spikelets much larger, 
6—8 mm, less numerous, gen. variegated with yellow and 
light brown, composed of 3 and indeed 4 fls. — Sand- 
beds by the Rhine near SchafFh. 5, 6 rhenana Grml. 2435. 
6B7. Holcus. Holcus. Ill, 57. 
1. Awn curved like a hook, scarcely prominent. L.-sheaths 
covered with soft, spreading hairs.—Dry meadows; dis¬ 
trib. 6. lanatus L. 2436. 
— Awn jointed, prominent. L.-sheaths gen. glabr.—Woods, 
fields; rarer than the last. 6 . . mollis L. 2437. 
638. Arrhenatherum. False-oat. Ill, 57. 
1. Panicle rather narrow. Spikelets (without the awn) 
8—9 mm, gen. 2-fld, the lower male fl. with a long, al¬ 
most rad., awn, the upper hermaphr. fl. with a short, 
almost terminal awn.—b. tuberosum Gilib. The 2—3 lower 
nodes of the stem swollen like tubercles.—Meadows, 
road-sides; distrib.; b. fields. 6, 7 elatius M. K, 2438. 
639. Avena. Oat. Ill, 60. 
1. Spikelets (at least after flowering) drooping. Glumes 
with 5—9 nerves. Ann. pis ..... 2 
— Spikelets erect Glumes with 1—3 nerves. Perenn. pis 6* 
2. Fls jointed on the axis of the spikelets and falling off 
at maturity. Axis of the spikelet, as also the lower glu¬ 
mella, with reddish yellow hairs, from the base to 
the middle, rarely (v. ambigua Schonh. A. hybrida Koch 
not Peterm.) glabr.—Corn-fields; not everywhere (want¬ 
ing in U. L.). 7. fatua L. 2439. 
— Fls not jointed on the axis and not falling off. Axis 
glabr. or only hairy at the base of the lower fl. 3 
3. Spikelets gen. 3-fld. Lower glumella herbaceous-mem¬ 
branous, marked with strong nerves from the base to 
the tip.—Rare. 6 t nuda L. 2440. 
— Spikelets gen. 2-fld. Lower glumella leathery, with dis¬ 
tinctly prominent nerves only towards the top . 4 
