TRIANDRIA— DIGYNIA. Bromus. 155 



is generally simple, its branches longer, and less divided, rough 

 with minute bristles, not downy. Spikelets larger, more turgid, 

 rough to the touch, but naked and shining. Outer valve of the 

 corolla marked with 2 green ribs at each side, which are scarcely 

 at all prominent, nor are there furrows between them as in 

 B. mollis. No one who has seen the plants together can mistake 

 them. The florets vary in number from 5 to 10. Authentic spe- 

 cimens, and Professor Schiader's accurate inquiries, have ena- 

 bled me to correct the synonyms of this species, and of B. «r- 

 vensis hereafter described. Much of the mass of error, which had 

 always enveloped this genus, was by similar means cleared away 

 in the 4th vol. of the Linnsean Society's Transactions; but the 

 confusion among German authors, who had in vain undertaken 

 its particular illustration, could be set right by a consummate 

 botanist of that country only. 



5. B. squarrosus. Corn Brome-grass. 



Panicle drooping, scarcely branched. Spikelets ovate-ob- 

 long. Florets about twelve, imbricated, depressed, rib- 

 bed. Awns widely spreading. Leaves downy. 



B. squarrosus. Linn. Sp. PL 1 12. Willd. v. 1. 430. Huds. 49. Fl. 



Br. 129. Engl. Bot. v. 27. t. 1885. TV. of L. Soc. v. 4. 288. 



Hook. Scot. 42. Schrad. Germ. v. ! . 350. Villars Dauph. v. 2. 11 5. 



Host Gram. v.\. 11.*. 13. 

 Avena n. 1501. Hall. Hist. v. 2. 235. 

 Festuca graminea, glumis vacuis. Scheuchz. Agr. 251. t. 5. 



/. 11. 

 Gramen phalaroides majus acerosum, niitante spica. Barrel. Ic. 



t.24.f. 1. 

 G. festuceum majus, locustis crassis lanuginosis, aristis recurvis 



longissimis. Buxb. Cent. 5. 19. i. 38./. 1. 



In cornfields, a doubtful native. 



Near Glastonbury, Somersetshire, and Marshfield, Sussex. Huds. 



In various parts of Scotland, Mr. G. Don. Hooker. 



Annual. July. 



Root small, fibrous. Stem a foot high, simple, smooth, striated, 

 leafy except at the upper part. Leaves linear, narrow, many- 

 ribbed, besprinkled with soft hairs. Sheaths clothed with hairs 

 pointing downwards, like the two last species. Stipula short, 

 blunt, hairy. Spikelets few, pendulous, large and tumid, full an 

 inch long. Calyx strongly ribbed. Florets from 8 to 12 or 15, 

 closely imbricated. Outer valve of the corolla elliptical, con- 

 cave, somewhat inflexed at the edges, with 3 or 4 crowded very 

 evident ribs at each side, the whole surface either minutely 

 downy, more or less, or densely hairy, as described by Buxbaum 

 and Host - y the summit deeply cloven, furnished at the cleft 

 with a strong, dorsal, rough, tnpering, twisting awn, about the 



