KNAPPIA.—AGROSTIS. 381 
row of fine short cilia on the back. Styles combined.—A very 
troublesome weed. A. IV.—XI. E. S.? 
9. Knappra Sm. 
1. K. agrostidea (Sm.),—E. B.1127. P.73. Sturmia minima 
Hoppe in St. 7.1. Chamagrostis Koch. Mibora verna R.—An 
elegant but very small grass. Root small, fibrous. St. nume- 
rous. L. short, rough. Spikes slender; spikelets 5—10, sessile, 
from one side of the rachis, but still rather alternate. Pale 
shorter than the glumes, hairy, truncate, ragged. Mibora 
(Adans.) is the oldest name, but I have thought 1t better to fol- 
low Smith.—Sandy maritime pastures, rare. A. TII—V.  E. 
Tribe IV. Agrostidea. 
10. Gastriptum Pal. de Beauv. 
1. G. lendigerum (Gaud.); gl. lanceolate acuminate, outer pale 
awned, awn rather longer than the glumes.—E. B. 1107. P.86. 
—St. 3—12 in. high. L. roughish at the edges. Ligule oblong. 
Panicle close, almost spiked, lobed. Gl. remarkably ventricose 
and shining at the base. Pales very small—Damp places espe- 
cially near the sea, rare. A. VI.—IX. E. 
11. Potyrocon Desf. 
1. P. monspeliensis (Desf.); setae more than twice as long as 
the rather obtuse glumes.—E.B. 1704. P. 11.—Root fibrous. 
St. a foot or more high. Panicle dense, lobed, pale, silky, often 
2 in. long. Gl. linear, hairy. A most beautiful grass.—Salt 
marshes. A. VI. VII. E. 8. 
2. P. littoralis (Sm.) ; setze equalling the acute glumes.—E. B. 
1251. P.81.—Root somewhat creeping. St. a foot or more 
high. Panicle close, lobed, purplish. Gl. linear-lanceolate.— 
Muddy salt marshes, rare. P. VI. VII. E. 
12. Mitium Linn. 
1. M. effusum (L.); panicle diffuse, pales acute, st. smooth, 
1. lanceolate-linear.—E. B. 1106. P. 17.—Root fibrous with 
scions. St. 3—4 feet high. Branches of the panicle long, in 
distant alternate tufts, im flower horizontal, afterwards deflexed. 
—Damp shady woods. P. VI. 
13. Agrostis Linn. Bent-grass. 
1. A. setacea (Curt.); panicle close oblong, branches and 
pedicels scabrous, gl. unequal acute, outer pale erose at the top 
