BRACHYPODITJM. TRITICUM. 411 



[S. squarrosus (Pari.) ; pan. drooping simple, spikelets ovate- 

 lanceolate subcompressed, fl. nearly glabrous imbricated com- 

 pressed, awn divaricate, 1. pubescent. — E. B. 1885. P. 128. — 

 Somerset and Sussex, introduced. A. VI. Vll.] 



Tribe XII. Hordeiem. 



45. Brachypodiifm Pal. de Beauv. 



1. B. syhaticum (R. and S.); spike drooping, spikelets (at first) 

 terete alternate distichous, awns of the upper fl. longer than their 

 pales, 1. flat linear-lanceolate flaccid, root fibrous. — E. B. 729. 

 P. 61. — St. usually solitary or 2 or 3 from the same root, erect, 

 1- — 2 feet high. Sheaths hairy. Ligule short, blunt, notched 

 or torn. L. ciliate. Pales hau-y. — Woods and hedges. P. VII. 



E.I. 



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. 132 — 

 137. — St. several, erect, 1 — 2 feet high. Pales scabrous or hairy. 

 Sheaths subglabrous. Ligule short, truncate. L. not ciliate. — 

 j3. ctBspitosum ; 1. very narrow and involute, St. very many, 

 spikelets small smooth. — On dry limestone soil. P. VII. 



46. Triticum Linn. Wheat-grass. 



1. T. caninum (Huds.) ; spikelets 2 — 5-flowered, 3 — 5-ribbed 

 gl. and 5-ribbed lower 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, lower pale shorter than its awn. — 13. alpinum ; 

 spikelets 2 — 4-flowered, lower pale much longer than its awn, 1. 

 nearly smooth. — Banks. /3. Rocks on Ben Lawers. Mr. G. Don. 

 P. VII. 



2. T. repens (L.) ; spikelets 4 — 8-flowered, gl. acute 5 — 7- 

 ribbed, lower 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 lower 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. — ^. littoreum ; rachis nearly or quite smooth, fl. awned, 

 edges of glaucous 1. involute. — Common. ^. Sea-shores. P. 

 VII. Couch-grass. 



3. T. laocum (Fr.) ; spikelets 6 — 8-flowered, gl. obtuse or api- 

 culate about 7-ribbed, lower pale blunt apiculate, axis downy, 

 rachis smooth or slightly rough at the angles not brittle, I. sca- 

 brous above with very many acute points flat involute when dry, 



t2 



