Ill] VEGETATIVE CHARACTERS 43 



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

 shoots being only slightly compressed. 



* Perennial. 



Bromus inermis (Awnless Bromo). 



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. 



Bromus 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, lidges 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. 



