4& TitiANnniA — DTC.YXiA. [Avet:a. 



Panicle 2—3 inclies long. Spihelcts fstandiiig nearly erect. Florets 

 5 — 10. £!xt. valve of the cor. convex ; hv no means forming' such cylin- 

 drical florets as in the two last species. I iiad considered var. /S. as be- 

 longing to the preceding (of which, indeed, the only published station is 

 that above given), but Mr Borrer refers it unhesitatingly to B. mollis. 



9. B. racemosus, L. (^smooth Jerome-grass); panicle erect, pe- 

 duncles simple, spikelets ovate su1)compressed glabrons, florets 

 imbricated compressed, awn strai<rlit about as long' as the glume, 

 leaves sligbtly bairy. E. Bot.t. 1079. — B. pratensis,E.Bot.t.^20. 



Meadows and pastures. Fl. June, July. 0. (^. Schrud.) — I fear 

 scarcely different from the preceding, exce])t in being more glabrous. 



10. * B. sfjuarrosus, L. (cor?i Brome-grass); panicle drooping, 

 peduncles simple, spikelets ovato-lanceolate subcompressed, 

 florets nearly glabrous imbricated compressed, awn'divaricating, 

 leaves pubescent. E. Bat. t. 1885. 



Corn-fields ; Somersetshire and Sussex. Fl. June, July. 0. — A 

 most distinct species, remarkable for its spreading awns. 



11.* B. arvensis, L. Qaper Jtehl Brome-grass); panicle spread- 

 ing(atlengtb drooping), peduncles brancbed. spikelets lanceolate 

 compressed, florets imbricated compressed glabrous about as 

 long as tbe straigbt awn, leaves hairy. E. Bot. t. 1984-. 



Corn-fields, r'dre. Fl. June, July. 0. — 2 — 3 f. high. Distinguished 

 by its rather large, but slender and at length drooping panicle, and by 

 the spikelets which have mostly a purplish tinge. 



12. B. erectus, Huds. (upright Brome-grass); panicle erect, 

 spikelets linear-lanceolate compressed, florets subcylindrical re- 

 mote glabrous longer than the straigbt awn, root-leaves very 

 narrow ciliated. E. Bot. t. 471. 



In fields and b^' road-sides, especially in a sandv soil over clialk. In 

 the King's Park, Edinburgh, i^/. July. ■y._2— s'f. high. This is truly 

 perennial, which does not appear to be the case with any oihar Bromus. 

 Its habit is that of Braclii/podium sylvaticuni. The root-leaves are 

 narrow ; spikelets erect. 



41. A VENA. Linn. Oat, or Oat-grass. 



1. A.fdtua, L. (wild Oat) ; panicle erect, spikelets drooping 

 of about 3 scabrous much awned florets smaller than the calyx 

 villous below, root fibrous. E. But, t.222l. 



Corn-fields, frequent. Fl. June, Aug. . — 2 — 3 f. high. Leaves 

 linear-lanceolate. Col. -valves lavjie, membranous, ovato-lanceolate, shin- 

 ing at the margins, keeled, acuminate, ribbed. £xf. valve of cor. with 

 long fulvous hairs at its base, bifid at the point. Awn of each floret 

 long and twisted, and constituting an excellent hygrometer. — The cul- 

 tivated Oat, A. sativa, ditlers from this in having one or more upper 

 florets imjierfect and awnless, in the shorter awn and absence of hairs 

 at the base of the florets. 



2 A. strigosa, Sclirad. {bristle-pointed Oat) ; panicle erect, 

 branches all secund, spikelets of 2 perfect florets each awned as 

 long as the calyx and terminated by 2 bristles. E. Bot. t. 1266. 



