134 TltlANDUIA— DIGYNIA. Dactylis. 



G.tremulummajus. Bauh. Theatr. 22. /. Scheuchz.Agr. 204.^.4./. 8. 



G. tremulum vulgare minus, locustis rotundioribus. Moris, v. 3. 

 203. sect. 8. t.0.f.45. 



In pastures common. 



Perennial. May, June. 



Root fibrous, tufted. Stem 12 or 18 inches high, leafy at the bot- 

 tom chiefly, smooth ; straight and slender in the upper part. 

 Leaves deep green. Panicle very slender and tremulous, the 

 branches and spikelets tinged with purplish brown. Florets about 

 7, the lower ones projecting a little beyond the calyx, which ren- 

 ders the spikelet ovate. I have from Mr. J. E. Bowman a beau- 

 tiful Welch specimen, whose Jiorets are 12 or more, green and 

 white, with 3 ribs towards each margin, more conspicuous than 

 in the common kind ; yet there are scarcely sufficient grounds 

 to make it a species, at least not without a comparison of more 

 specimens. 



48. DACTYLIS. Cock's -fooOgrass. 



Linn. Gen. 35, Juts. 31. Fl. Br. 110. Lam. t. 44. 



Cal. of 2 unequal, linear-lanceolate, taper-pointed, keeled, 

 compressed valves, containing a spikelet of several Jiorets. 

 Cor. of 2 unequal, lanceolate, keeled, compressed valves; 

 the outer one more or less awned, flat and membranous 

 at the edges ; inner about as long, but narrower ; 2-rib- 

 bed, folded, acutely cloven at the point. Nect. of 2 lanceo- 

 late, pointed scales, tumid at the base. Filam. capillary, 

 longer than the cor. Anth. cloven at each end. Germ. 

 roundish. Styles very short, distinct. Stigmas spreading, 

 oblong, feathery. Seed oblong, with a longitudinal fur- 

 row, covered by the unchanged corolla, but loose, not 

 attached to it. 



Too near to Festuca. 



Root perennial. Stem leafy, simple or branched. Flowers 

 in dense unilateral panicled tufts. 



1. D. glomerata. Rough Cock's- foot-grass. 



Panicle distantly branched. Flowers in dense globular tufts, 

 unilateral. Corolla somewhat awned, five-ribbed, taper- 

 pointed. 



D. glomerata. Linn. Sp. PL 105. Willd. v. 1 . 408. VI. Br. 11 1 . 



Engl. Bot. v.5. t. 335. Mart. Rust. 1. 14. Knapp t. 62. Hook. 



Scot. 37. Sincl. 9. Schrad. Germ. i;. 1.311. Schreb. Gram. v. 1 . 



72.L8./.2. Host Gram. v. 2. 67. t. 94. Leers 2\. t.3.f.3. Fl. 



Dan. t. 743. 

 Bromus glomeratus. Scop. Cam. v. 1. 76. 



