GRAMIXA. 
45 
shorter than the internodes, and always adpressed. This and the 
shorter anthers seem the only tangible "^distinctions between A. inter- 
rupta and A. Spica-venti. The spikelets of the two are undistinguish- 
able, except that those of A. interrupta appear to be always green, 
never tinged with, purple. 
Dense-Jlowered Silhj Bent-Ord.-s. 
German, TTnttrlruclituer Wmdhahn. 
This species is found in the same fields with the former one. It is of no agricultural 
value, but its presence indicates light land. 
Section II TRICHODIUM. Mich. 
Lower glume larger than the upper one. Lower pale truncate and 
denticulate at the apex. Awti from about or below the middle or 
near the base of the pale, not extending beyond the pale more than the 
length of the latter. Upper pale absent or very minute. 
SPECIES n.-AGROSTIS SETACEA. Curt. 
Plate ]yiDCCX\ai. 
BiUot, Fl. Gall, et Germ. Exsicc. Is'o. 1977. 
Trichodium setaceum, Bom. & Scladtes, Syst. Yeg. Yol. II. p. 280. 
Yilfa aetacea, Fal. de Beauv. Agrost. p. 16. 
Densely ca3Spitose, without stolons. Stems erect or ascending, not 
rooting at the base. Radical leaves numerous, in compact erect 
fascicles, setaceous, involute, glaucous. Stem leaves few, short, a little 
broader than the radical leaves, involute ; sheaths nearly smooth, the 
uppermost one many times longer than its leaf ; ligule oblong, pro- 
minent, laciniate. Panicle narrowly cylindrical, rather dense, closed 
except at the moment of flowering ; panicle-branches short, but little 
exceeding the internodes of the rachis, rough, only the longer ones 
bare of florets towards the base for about half their length. Glumes 
narrowly lanceolate, acuminate, lower one a little longer and broader 
than the other, scabrous on the keel nearly throughout. Lower pale 
about two-thirds the length of the lower glume, broadly truncate, 
with 2 short set« at the apex. A^vn from between the base and the 
middle of the pale, bent, extending about the length of the pale beyond 
its apex. Upper pale not one-fourth as long as the lower one. 
On dry heaths, commons, and do^vns. Local. Confined to the 
south of England. Found in Cornwall, Devon, Somerset, Hants, 
Sussex, Surrey, and Glamorgan. 
England. Perennial. Summer. 
