184 TRIANDRIA— DIGYNIA. Triticum. 



variety y is rather stouter and shorter in habit, all over more or 

 less glaucous, though variable in that respect, and certainly a 

 mere variety. The leaves are often involute. 

 Schrader describes a more remarkable state of this grass, figured 

 in Leers t. 12, f. 4, 1, in which a great part of the spikelets in 

 the lower portion of the spike are double, or in pairs, contrary 

 to the generic character. But the creeping root distinguishes 

 this variety from the following species, with which it is con- 

 founded by Leers j both being indeed considered by him as be- 

 longing to T. repens. 



3. T. caninum. Fibrous-rooted Wheat-grass. 

 Calyx-valves somewhat awned, with three or five ribs. 



Florets four, awned. Leaves flat. Root fibrous. 



T. caninum. Huds. 58. Fl. Br. 159. Engl. Bot. t>.20. t. 1372. 

 Knappt.\\2. Hook. Scot .44. Sincl. 93. Schrad. Germ. v. 1.389. 

 Host Gram. v. 2. 20. t. 25. Fl. Dan. t. 1447. 



T. n. 58. Gmel. Sib. v. 1. 122. t. 27. 



T. n. 1429. Hall. Hist. v. 2. 212. 



Elymus caninus. Linn. Sp. PI. 124. Willd. v. 1 . 469. Leers 46. 

 *. 12./. 4, 2. Ehrh.Phyt.72. 



Gramen spica triticea compacts*, aristis longioribus. Scheuchz. 

 Agr. 10. 



G. caninum aristatum, radice non repente, sylvaticum. Rail 

 Syn. 390. 



G. caninum non repens, elatius, spica aristata. Moris, v. 3. 177. 

 sect. 8. t.l.f. 2. Buxb. Cent. 4. 29. t. 50. 



In woods, and shady hedges, on a chalky, or limestone, soil. 



Perennial. July. 



Root of several downy stout fibres, not at all creeping. Stems 2 

 feet high, leafy, round, minutely striated, very smooth. Leaves 

 nearly upright, lanceolate, taper-pointed, thin, flat, bright green, 

 rough on both sides ; sometimes hairy. Sheaths of the lower 

 ones only hairy. Stipula very short. Spike 3 or 4 inches long, 

 a little inclining, close. Spikelets alternate, except the lower- 

 most, which sometimes stand in pairs, side by side. Calyx lan- 

 ceolate, with 3, sometimes 5, stout, smooth, very neat, ribs ; 

 the keel being not rough as represented in Engl. Bot., though 

 the short terminal awn is sometimes so. Outer valve of the 

 corolla ribbed at the top only, with a much longer, rough awn 

 from the keel ; inner valve fringed. 



The fibrous root distinguishes this species from every variety of the 

 last. 



4. T. cristatum. Crested Wheat-grass. 

 Calyx-valves elliptical, awned, keeled, obscurely ribbed. 



Florets awned. Spikelets closely imbricated, depressed, 

 straight. Stems simple. 



