388 97. GRAMINES. 
preserving its characters on rich as well as barren soil.— Hedges 
and pastures. P. VI. Oat-grass. 
29. Hoxcus Linn. 
1. H. lanatus (L.); upper gl. obtuse apiculate. awn smooth 
except for a short distance from the tip.—H. B. 1169, P. 21.— 
Height 1—2 feet. Sheaths downy. Inflorescence panicled, often 
pinkish. Lower fl. awnless. Awn at length curved like a fish- 
hook and included within the glumes, quite smooth or slightly 
rough at the point. Root fibrous——Meadows aud pastures. 
P. VII. 
2. H. mollis (L.); upper gl. acute, awn rough throughout its 
whole length —#. B. 1170. P. 21, 22.—Height 1—3 feet. 
Knots of st. usually downy. Sheaths nearly smooth. Inflores- 
ceuce not so compact as in the preceding, whitish. Lower fl. 
awnless. Awn at length bent at an angle, protruding beyond the 
glumes. Root creeping. Sometimes the lower fl. has an awn; 
rarely the upper is perfect. Occasionally the spikelets are much 
smaller and the plant only 12—18 in, high.—Thickets or open 
places on a light soil. P. VII. 
30. Triopia R. Br. 
1. T. decumbens (Beauv.); panicle racemose, spikelets few 
oval, fl. about 4 scarcely extending beyond the glumes without 
awns.— FE. B.792. P.30.—St.6—12 in. high. L. flat. Sheaths 
rvather hairy. Ligule a tuft of hairs. Spikelets few, 1—7. Gl, 
smooth, coriaceous, hiding the fl. Outer pale with 3 points, 
5-ribbed, hairy at the base—Mountain pastures. P. VII. 
Tribe XI. Festucee. 
31. Kaxveria Pers. 
1. K. cristata (Pers.); panicle compact spikelike interrupted 
below, outer pale acute 3-rbbed, 1. narrow rough at the edges 
ciliated.—Aira Sm., E. B. 648. P.19.—Root crowned with the 
undivided sheaths of the old leaves. St. 6—18 in. high, downy 
particularly in the upper part. L.rough and ciliated at the edges, 
otherwise glabrous ; or together with the sheaths villose. Glumes 
and pales glabrous or downy; glumes minutely toothed at the 
keel; outer pale minutely toothed on the midrib. Sometimes 
the 1. become eonvolute when dry. In dry places the 1. are much 
shorter than the st., in damper places elongated and often nearly 
equalling the stem.—Dry pastures. A large form on damp ledges 
on Ben Bulben, Co. Sligo. P. VI. VII. 
