TRIANDRIA— DIGYNIA. Triticum. 183 



Jtorels. The main stalk separates finally at the joints. The in- 

 ner valve of the corolla is minutely fringed. 

 This species is sometimes confounded with a maritime variety of 

 T. repens, hereafter described. 



2. T. repens. Creeping Wheat-grass. Couch-grass. 



Calyx-valves pointed or awned, lanceolate, many-ribbed. 

 Florets about five, sharp-pointed or awned. Leaves flat. 

 Root creeping. 



T. repens. Linn. Sp. PI. 128. Willd. v.\.4S\. Fl.Br. 158. Engl. 

 Bot. v. 13. t. 909. Knapp 1. 1 11. Hook. Scot. 44. Sincl. 307. 

 Schrad. Germ. v. 1. 390. Host Gram. v. 2. 17. t. 21. Leers 45. 

 1. 12./. 3. Schreb. Gram. v. 2. 24. t. 26. Ehrh. PL Of. 12. 



T. n. 1426. Hall. Hist. v. 2. 210. 



Gramen spica triticea repens vulgare caninum dictum. Raii Syn. 

 390. 



G. caninum repens vulgatius. Moris, v. 3. 178. sect. 8. t. \.f. 8. 



G. caninum arvense, sive Gramen Dioscoridis. Scheuchz. Agr. 5. 



G. caninum arvense, sive primum. Bauh. Theatr. 7.f. 



j6. Glumes awned. T. repens. Mart. Rust. t.\24. lVith.\73. var.4. 

 Fl. Dan. t. 748. 



Graminis spica triticea repentis vulgaris varietas, cum spica aris- 

 tata. Scheuchz. Agr. 9. 



G. loliaceum, radice repente, &c, aristis longioribus donatum. 

 Vaill Par. 81. t. 17. f. 2. 



y. Triticum junceum. Relh. 55. 



T. repens var. 5. With. 173. 



Elymus arenarius. Huds. ed. 1. 44. ^ 



Gramen caninum maritimum, spica triticea, nostras. Raii Syn. 390. 



In waste, as well as cultivated, land, every where. 



y. On the sea coast, not uncommon. 



Root long, creeping deeply and widely, so as to be very difficult 

 of extirpation, jointed, clothed with membranous sheaths ; the 

 fibres downy. Stems slender, erect, 2 feet high, most leafy 

 below j round, striated, and smooth, at the top. Leaves of a 

 dull, somewhat glaucous, green, linear, flat, spreading, gene- 

 rally all directed one way ; their margin and upper side rough. 

 Sheaths tight, ribbed, smooth, or a little hairy. Stipula short, 

 finely notched. Spike 2 or 3 inches long, erect, flat, of nume- 

 rous, pretty close, elliptic-oblong spikelets ; the main stalk some- 

 times hairy, especially at the edges. Florets from 4 to 8 or 9, 

 the colour of the foliage. Valves of the calyx lanceolate, ribbed, 

 pointed or awned. Outer valve of the corolla similar, but with 

 fewer ribs, and those chiefly towards the summit, which ends 

 either in a short point, continued from the keel, or in a terminal 

 rough awn, various in length, but seldom longer than the glume 

 itself ; inner valve obtuse, or notched, awnless. The maritime 



