THE GRASS TRIBE 345 



inch long), and the awns are shorter or not longer than the glumes. 

 Damp woods and thickets ; common. Fl. July. Annual or 

 perennial. 



3. B. erecius (Upright Brome). Erect, 2 feet high or more ; 

 rootslock slightly creeping ; leaves narrower than is usual in the 

 ^enus, with a few long hairs on the sheaths ; panicle 3-5 inches 

 long, much more compact than in B. sterilis, with nearly erect 

 branches ; spikelets -i inches long ; flowering glumes lance 'late, 

 with a straight awn scarcely half as long. Sandy or chalky fields 

 and waste places ; common. Fl. June, July. Perennial. 



4. B. sterilis (Barren Brome). Erect, 1-2 feet high or more ; 

 leaves softly downy ; panicle 6 inches long or more, with numerous 

 drooping branches, many of them as long as the spike 1- ; - 1 r longer ; 

 spikelets linear-lanceolate, about 6-fi-flowered, up to 2 inchi 



or more, including the awn, which is longer than the glume Waste 

 places and roadsides ; abundant. Fl. June. Annual. (PL xciv.) 



5. B. madriiensis (Compact Brome). Smaller than the la 

 rarely more than 1 foot high, less downy ; leaves 1 r ; pa; 



ct or nearly so, compact, often purplish ; spikelets, including 

 the awns, rarely more than 2 inches long. Dry places in the south ; 

 rare. Fl. June, July. Annual. 



6. B. tectorum is an introdu' 1 ies met with occasionally as 

 a weed. It is much like B. madriiensis, but it has a drooping, 

 i-sided panicle. 



7. B. maximus (Great Brome). More erect and compact than 

 B. sterilis, the branches are much shorter, few of them as long as 

 the spikelets without the awns ; flowering glumes larger and broader, 

 with very long, stouter awns ; the whole spik< let, with the awns, 

 is often 3! inches long. Sandy places in the Channel Islands. Fl. 

 August. Annual. 



** Lowest glume 3-5-vcincd ; second j-q-veined ; flowering 

 glume with a short awn 



8. B. sccalinus (Kye-Prome). A more or less softly downy 

 grass, 2-3 feet high ; panicle rather small, usually more or less 

 drooping ; spikelets narrowly ovoid-oblong, usually $ f incli long, 

 excluding the rather short, slender awns ; flowers at first loosely 

 imbricate, afterwards distinct and spreading. Cornfields ; common. 

 Fl. June, July. Annual. 



9. B. racemosus (Smooth Brome). Much more slender and 

 usually taller than the last, and easily distinguished from it by the 

 flowers being closely imbricate in the fruiting stage. Similar to 

 B. mollis, but much less hairy. Cultivated and waste places, 

 meadows, etc. ; common. Fl June. Biennial. 



