396 



INDEX 



Bromegrass, scattering and planting 

 of seed, 67; in depletion of mixed 

 grass and weed stage, iii; mechan- 

 ically injurious, 285; for study in 

 grazing course, 368. 



Bromegrass, Austrian, name for Hun- 

 garian bromegrass, 137. 



Bromegrass, awnless, name for Hun- 

 garian bromegrass, 137. 



Bromegrass, downy, growth after burn- 

 ing brushland, 226; mechanically 

 injurious, 286. 



Bromegrass, hairy, mechanically in- 

 jurious, 286. 



Bromegrass, Hungarian, in reseeding 

 tests, 41, 44, 45, 47; more permanent 

 than timothy, 52; amount to sow 

 and cost, 53; moisture requirements, 

 54; introduced from Old World, 55; 

 on permanent pasture, 88, 132; habit 

 of growth, 137, (fig.) 138; value 

 as hay and as pasture, 138; seeding, 

 138; kind of soil, 139. 



Bromegrass, large mountain, indicator 

 plant, 129. 



Bromegrass, mountain, collecting seed 

 of, 57; terrace seeded to, (fig.) 194; 

 growth after burning brushland, 226. 



Bromegrass, native, growth on eroded 

 and on noneroded soil, 184; relative 

 water requirements, (fig.) 186; sum- 

 mary of study, (fig.) 188. 



Bromegrass, Porter's, indicator plant, 

 129, 130. 



Bromegrass, red, mechanically injuri- 

 ous, 286. 



Bromegrass, Russian, name for Hun- 

 garian bromegrass, 137. 



Bromegrass, smooth, name for Hun- 

 garian bromegrass, 137, (fig.) 138. 



Brornus, in depletion of mi.xed grass 

 and weed stage, in; growth after 

 burning brushland, 226; mechanic- 

 ally injurious, 285; for study in graz- 

 ing course, 368. 



Brornus carinatus, collecting seed of, 57. 



Bromus inermis, habit of growth, 137, 

 (fig.) 138; value as hay and as 

 pasture, 138; kind of soil, 139. 



Bromus marginatiis, indicator plant, 

 129; growth on eroded and on non- 

 eroded soil, 184. 



Bromus Porteri, indicator plant, 129, 



130- 



Bromus rubens, mechanically injurious, 

 286. 



Bromus tectorum, mechanically injuri- 

 ous, 286. 



Bromus villosus, mechanically injurious, 

 286. 



Broomgrass, in reseeding tests, 43: 



withstands fire, 237. 



Broom sedge, withstands fire, 224. 



Browse, grazing t>-pe, (fig.) 315. 



Browsing, effect of, on timber repro- 

 duction, 199, 200; yellow pine, in- 

 jured by sheep, (fig.) 201; yellow 

 pine, injured by cattle, (fig.) 203; 

 deformed trees, result of, (fig.) 204; 

 effects of, on aspen reproduction, 206; 

 area protected from sheep, (fig.) 207. 



Brush drag, for covering seed, 41. 



Brushland, effect of burning, 225. 



Buckthorn, effect of fire on, 226. 



Buckthorn family, for study in grazing 

 course, 369. 



Buffaloes, migrations of, 61; impress 

 on range, for study in grazing course, 

 365. 



Buffalograss, for study in grazing course, 

 368. 



Buffalograss-gramagrass, in Great 

 Plains, 6. 



Bulbilis, for study in grazing course, 

 368. 



Bunchflower family, poisonous plants, 

 242; for study in grazing course, 369. 



Bunchgrass, in desert range of Great 

 Basin, 7; cropping tests with, 63; 

 revegetation of bunchgrass lands, 66; 

 seedlings at end of first and of sec- 

 ond year's growth, (figs.) 68, 69; 

 early in summer of third year, (fig.) 

 70; at end of third year, (fig.) 71; 

 does not withstand early grazing as 

 well as sodgrass, 88; form of growth, 

 89, 90; t>T5ical form, (fig.) 91; over- 

 grazing, the rule, 96; effect of grazing 

 on timber reproduction on bunch- 

 grass range, 204. 



Bunchgrass, mountain, at end of first 

 season of growth, (fig.) 68; at end 

 of second season, (fig.) 69; earl}- in 

 summer of third year, (fig.) 70; at 

 end of third year, (fig.) 71. 



Bureau of Plant Industry, studies of 

 grazing capacity, 328. 



Burning, burned-over forest range, 

 (fig.) 46; of pasture lands, 216; 

 history of, 216; woodland pasture 

 fire, (fig.) 217; fire-swept area, (fig.) 

 218; present-day, 219; reasons for, 

 220; effects on forage production, 

 221; effect on grasslands, 222; in 

 the South, 223; favors erosion, 224; 

 periodic, 225; effect on brushlands, 

 225; effect on wooded pastures and 

 forest ranges, 228; effect on vege- 

 tation, 229; study o{, in grazing 

 course, 376. 



