420 
Graminese. 
— Awns of the upper fls (of one spikelet) longer than 
their glumella. Ls limp. Rt-stock short, loosely tufted. 
Ls broader.—Woods; distrib. 7, later than the last 
sylvaticum R. Sch. 2526. 
658. Nardurus. Nardurus. Ill, 21. 
1. Spike unilateral. Fls linear-lanceolate, very acute, short- 
mucronate or (v. aristatus) long-awned. N. tenellusRchb., 
F. tenuiflora Schrad.—Arid, sandy places; Geneva, very 
rare. 5.unilateralis Boiss. 2527. 
— Spike distichous. Fls oblong-lanceolate, subobtuse, un¬ 
armed or (v. aristatus) awned. N. Poa Boiss., Festuca 
Lachenalii Spenn.—As the last; Tess. (Locarno, Taverne), 
Aarg. (Schoftland, probably adventitious). 5 
Lachenalii Godr. 2528. 
659. Gaudinia. Gaudinia. Ill, 15. 
1. Like an Avena with the inflorescence of a Lolium! Ls 
hairy.—Uncultivated places, road-sides; W. Y. 6 
fragilis Beauv, 2529. 
660. Agropyrum. Agropyrum. Ill, 20. 
1. Rt-stock not creeping. Awns longer than the glumellas. 
Type of A. caninum ...... 2 
— Rt-stock long-creeping. Awns 0 or shorter, rarely as 
long as, or longer than, the glumellas. Type of A. repens 3 
2. Spikelets gen. composed of 5 fls. Ls fairly broad.— 
Shady places, hedges; distrib., but not common. 6 
caninum R. Sch. 2530 
— Spikelets composed of 2—3 fls. Ls narrower than in 
the last. - G. W. (Finstermiinz, Viege). 6 biflorum Rchb. 2531. 
3. Glumes acute or acuminate. Lower glumella faintly 
nerved. Quick-grass. —Hedges, road-sides, fields, gardens; 
distrib. 6.repens Beauv. 2532. 
— Glumes very obtuse or truncate. Lower glumella more 
strongly nerved.—? b. intermedium Host, (campestre Gr. 
Godr. not Kit.). Ls flatter; glumes more acute (lake 
of Geneva).—Hills, road-sides; W. Y. 6 
glaucum R. Sch. 2533. 
661. Triticum. Wheat. Ill, 20. 
1. Axis of the spike, of an even breadth, tough, not jointed 
Fr. not adherent to the glumellas ... 2 
— Axis of the spike composed of pear-shaped joints which 
fall off with the spikelets when ripe. Fr. adherent to 
the glumellas (the seeds also do not fall out in thresh¬ 
ing, but only the spikelets are obtained !) . 5 
