400 97. GRAMINEE. 
2. B. pinnatum (Beauv.) ; spike erect, spikelets (at first) terete 
alternate distichous, awns of the upper fl. shorter than their pales, 
1. flat linear-lanceolate rigid, root creeping.—E. B. 730. P. 182— 
137. B. gracile R.—St. several, erect, 1—2 feet high. Pales 
scabrous or hairy. Ligule short, truncate.—f. ceespitosum ; 
1. very narrow and involute, st. very numerous, spikelets small 
smooth.—On dry limestone soil. 8. near Bath. P. VIL. 
Tribe XII. Hordeiee. 
45. Triticum Linn. 
1. T. caninum (Huds.); spikelets 2—5-flowered, 3-ribbed gl. 
and 5-ribbed outer pale awned, axis and edges of the rachis hispid, 
1. flat rough on both sides, root fibrous—E. B. 1372. P. 62. 
Agropyrum R.—Spikelets approximate.—a;_ spikelets 4—5- 
flowered, outer pale shorter than its awn.—f. T. biflorum (Brig.); 
spikelets 2—4-flowered, outer pale much longer than its awn, |. 
nearly smooth.—Banks. 8. Rocks on Ben Lawers. Mr. G. Don. 
P. VII. 
2. T. repens (L.); spikelets 4—8-flowered, gl. acute 5—7- 
ribbed, outer pale acute, axis scabrous, rachis with rough angles, 
1. flat roughish a single row of hairs upon each ridge above, root 
creeping. —E. B. 909. P. 62. The outer pale often has an awn 
which is seldom more than half its length. Rachis glabrous or 
downy but always with small ascending rigid bristles on its 
angles.—8. littorale (Bab.); rachis nearly or quite smooth, fl. 
awned, edges of |. involute—Common. £.Sea-shores. P. VII. 
Couch-grass. 
3. T. junceum (L.); spikelets 4—6-flowered, gl. obtuse 6—11- 
ribbed, outer pale obtuse, axis smooth or slightly downy, rachis 
smooth, 1. involute finely and closely downy above, root creeping. 
—E. B. 814. P. 63.—Spikelets distant. Rachis easily sepa- 
rating at the knots. Producing decumbent barren leafy shoots. 
—Sandy sea-shores. P. VIJ. VIII. 
4. T. laxum (Fr.); spikelets 5—8-flowered, gl. obtuse about 
7-nerved, outer pale obtuse apiculate, axis downy, rachis smooth 
or slightly rough at the angles, 2. scabrous above with very many 
acute points flat involute when dry, root creeping.—T. junceum 
8. scabrum Bab. T. pungens R., not Koch.—Spikelets often ap- 
proximate. Rachis not brittle. St. prostrate or ascending. 
Producing decumbent barren leafy shoots.—Sandy sea-shores, 
probably not rare. P. VII. VIII. E. S$. 
[5. T. cristatum (Schreb.) ; spikelets 4—5-flowered closely im- 
bricated, gl. with a terminal awn, outer pale with an awn about 
as long as itself, rachis and axis slightly downy, 1. hairy above, 
