TRIANDRIA— DIGYNIA. Cynosurus. 137 



glumes; the other parallel to it, of sever aljlorets. Cal. of 

 2 equal, lanceolate, membranous, concave, single- ribbed, 

 keeled, taper-pointed, awned valves, containing two or 

 three pe.rfect Jlorets, the first sessile, the rest stalked, with 

 an occasional rudiment of more. Cor. wanting in the neu- 

 ter spikelet; in the perfect one of 2 unequal lanceolate 

 valves; the outermost concave, keeled, more or less awned 

 at the summit, the awn straight ; inner two-ribbed, in- 

 flexed at the edges, cloven at the point, awnless. Nect. of 

 2 acute scales. Filam. capillary, shorter than the glumes. 

 Anth. linear, cloven at each end. Germen elliptical. Styles 

 very short, distinct. Stigmas long, cylindrical, feathery. 

 Seed loose, invested with the unchanged corolla, elliptic- 

 oblong, with a furrow along the upper side. 



The corolla is certainly not, as Schrader defines it, united 

 with the seed, though Schreber's account of its " closely 

 enfolding the seed and not separating,'' might suggest 

 such an idea; for Schrader, so exact in what he observes 

 with his own eyes, does not describe the seed, as seen by 

 himself, in any of his species. In fact, the substance of 

 the corolla remains unchanged, and the seed is as little 

 attached to it, in either of our species, as in any grass 

 whatever. 



Hoots annual, or perennial. Stems erect, leafy. Spikes dense, 

 simple or compound, assuming a crested appearance from 

 the neuter spifcelets, mostly concealing the perfect ones. 



1. C. cristatus. Crested Dog's-tail-grass. 

 Spike simple, linear. Neuter spikelets without awns. 



C. cristatus. Linn. Sp. PL 105. mild. u. 1.411. Fl. Br. 111. 



Engl. Bot. v. 5. t. 31 G. Mart. Rust. t. 106. Knapp t. 64. StU- 



linsji. t.U. Hook. Scot. 37. Sincl. 27. Schrad. Germ. v. 1 . 314. 



Host Gram. v. 2. 68. t. 96. Schreb. Gram. v. 1. 69. t. 8./. 1. 



Leers 49. t. 7.f. 4. Fl. Dan. t. 238. 

 C. n. 1545. Halt. Hist. v. 2. 251. 

 Gramen cristatum. Bauh. Hist. v. 2. 468./. Bauh. Prodr. 8. /. 



Raii Syn. 398. Ger. Em. 29*. 

 G. pratense cristatum. Bauh. Theatr. 42. f. 43. Scheuchz. Jgr.79. 



L2./.S.A, C. 

 G. cristatum anglicum. Moris, v. 3. 194. sect. 8. t. 4.f. 6. 



In dry pastures, parks and lawns, every where. 



Perennial. June, July. 



Root tufted, with long simple fibres. Stems several, 1 2 — 18 inches 



high, simple, rigid, round, smooth, most leafy in the lower part ; 



remaining brown and withered, with their dry empty spikes, 



