180 TRIANDRIA— DIGYNIA. Hordeum. 



G. hordeaceum minus et vulgare. Bauh. Theutr. 134./. Scheuchz. 

 Agr.\4. 



On waste ground, and by way sides, common. 



Annual. June — August. 



Root fibrous. Stems 12 — 18 inches high, spreading and decum- 

 bent at the base ; then ascending, slender, leafy, smooth, with 

 3 or 4 joints. Leaves linear, flat, roughish, with long, rather 

 lax, strongly ribbed, smooth sheaths. Stipula short. Spike 2 or 3 

 inches long, cylindrical, very dense and uniform, two-ranked, 

 brittle. Two \sLtem\flowers stalked ; their calyx-valves bristle- 

 shaped, rough ; those of the central flower linear-lanceolate, 

 three-ribbed, fringed with spreading hairs. Lateral^owers with 

 stamens only ; central one perfect, and considerably the largest. 

 Outer valve of the corolla of the latter concave, somewhat downy, 

 finally coating the seed; inner as long, but narrower and flat, 

 with a bristle at its base externally, probably the rudiment of a 

 secondfloret. A grass of no agricultural use. 



2. H. pratense. Meadow Barley. 



Lateral flowers imperfect, with shorter awns. All the calyx- 

 valves bristle-shaped and rough. 



H. pratense. Huds. 56. Fl.Br.156. Engl. Bot. v. 6. 409. Rel. 

 Rudb. 12. /. 1. Mart. Rust. U08. Knapp t.\05. Hook. Scot. 

 46. Sincl. 203. Schrad. Germ. v. 1 . 405. Ehrh. Calam. 57. 



H. nodosum. Linn. Sp. PL 126. Willd. v. 1. 474, excluding Ray's 

 synonym. 



H. murinum /3. Ibid. 



H. secalinum. Willd. v. 1. 475. Host Gram. v. 1. 26. t. 33. 



H. maritimum. Fl. Dan. t. 630. 



H. n. 1538. Hall. Hist. v. 2. 248. 



Gramen secalinum. Ger. Em. 29. *f. Raii Syn. 392. 



G. secalinum pratense elatius. Moris, v. 3. 179. sect. 8. t. 2./. 6. 



G. spicatum secalinum minus. Scheuchz. Agr. 17. Vaill. Par. 83. 

 1.17./ 6. 



In meadows and pastures, especially such as are rather moist. 



Perennial. June. 



Root fibrous ; becoming bulbous in barren ground occasionally 

 overflowed. Whole plant more slender than either of our other 

 species. Stem more upright, and twice as tail ; naked and 

 smooth at the top. Leaves narrow, roughish, sometimes hairy, 

 as well as their sheaths, which are close, not swelling, with a 

 scarcely perceptible stipula. Spike 2 inches long, often tinged 

 with brown or purple. All the calyx-valves very narrow, bristle- 

 like, equal, rough at the. back. Lateral^owers stalked, with or 

 without stamens, but always destitute of pistils. Outer valve of 

 the corolla in all the /lowers ovate, awned ; the awn shortest in 

 the lateral ones. Germen in the middle flower only, turbinate. 

 Stigmas feathery along the upper side. 



