Ill] VEGETATIVE CHARACTERS 43 



(1) Section of sheathed leaves circular or nearly so, the 

 shoots being only slightly compressed. 



* Perennial. 



Bromus inermis (Awnless Brome). 



Sections circular, the leaves being convolute, base 

 shelving. Glabrous sheaths and leaves. Stoloniferous. 

 Ligule short, truncate, and finely toothed. A forage grass 

 of the Hungarian steppes. Now being grown in this 

 country, but of doubtful value here. 



Bronrns erectus, Huds. (Upright Brome). A. weed. 



Sections oval and rounded, but leaves equitant. Radical 

 leaves remain folded and almost subulate, hairy edges. No 

 stolons. Fields, &c. It is a weed on dry lands, and of 

 little or no value. 



Bromus asper, Murr. (Hairy Brome). In thickets, &c.: 

 a weed, and useless. Leaves green, long, flat, hanging, 

 and eared. Sheath with scattered deflexed hairs. Lamina 

 tapering at the base. Keel a white line, ridges incon- 

 spicuous: distance between veins 2 — 3 times breadth of 

 latter. Ligule very short, toothed. 



B. giganteus, L. (Tall Brome), also comes here. It is 

 less common and glabrous. Woods, &c., a useless weed. 

 ** Annual or biennial. 



Bromus mollis (B. arvensis, var. mollis, L.), Field 

 Brome. A too abundant and useless weed in water- 

 meadows and hay-fields. Softly downy. Blades very thin 

 and not eared : dry. 



Bromus sterilis, L. (Barren Brome). A useless weed. 

 Rough and downy, but less so than the last. Moist way- 

 sides, &c. 



