Millet, pearl, for soiling, 58. 
production of, by states, 85. 
proso, 47, 50, 182. 
Texas, 183. 
Milo, 170, 172. 
Miscanthus, 165, 166. 
nepalensis, 166. 
saccharifer, 166. 
sinensis, 166. 
gracillimus, 166. 
variegatus, 166. 
zebrinus, 166. 
Moisture as related to crop areas, 79. 
Molinia, 221. 
Monanthochloé, 219, 220. 
Monerma, 236. 
Moneecious grasses, 115. 
Morphology of floral organs, 112-132. 
of vegetative organs, 95-111. 
Motor organs, 117. 
Muhlenbergia, 27, 196, 197, 200. 
gracilis, 105, 201. 
straminea, 105. 
Munroa, 221. 
Names, common, 260-261. 
generic, 250. 
derivation of, 251. 
formation of, 250. 
priority of, 257. 
specific, 251. 
formation of, 251, 252. 
subspecific, 253. 
transferring, 253-254. 
valid, 257. 
varietal, 253. 
Nardus, 235. 
National forests, grazing in, 24. 
Nazia, 173. 
aliena, 175. 
Naziezx, 156, 173. 
Needle-grass, 199. 
Nitrogen-fixing organisms, 21, 51. 
Node, 98, 105. 
Nomenclature, 250. 
codes of botanical, 258. 
Nomina conservanda, 258. 
Notholeus, 208, 209. 
lanatus, 209. 
Oat, 209. 
animated, 211. 
cultivated, 209. 
origin of, 211. 
germination of, 138. 
grass, tall, 45, 212. 
naked, 210. 
R 
INDEX 
Oat, wild, 46, 211. 
Old witch-grass, 76. 
Olyra, 176, 177. 
Oplismenus, 176, 179. 
Opuntia, cultivation of, 21. 
Orchard-grass, 33-34, 45, 226. 
Orcuttia, 220. 
Oryza, 190. 
sativa, 190, 191. 
Oryzex, 156, 189. 
Oryzopsis, 196, 197. 
Osterdamia matrella, 175. 
273 
Overgrazed pastures, weeds of, 77. 
Overgrazing, 24-26. 
Pacific slope crop area, 84. 
Palea, 118, 127. 
Pampas-grass, 224, 
hardy, 167. 
Panicacex, 154-155. 
Panicex, 156, 176. 
Panicle, 113. 
branching of, 147. 
Panicoidee, 154-155. 
Panicularia, 223. 
Panicum, 176, 179, 181. 
barbinode, 183. 
bulbosum, 102, 141, 183. 
elephantipes, 146. 
Lindheimeri, 106. 
maximum, 183. 
miliaceum, 8, 182, 194-195. 
spherocarpon, 106. 
texanum, 183. 
virgatum, 39, 40. 
Pappophorum, 219. 
Para-grass, 35, 183. 
stolons of, 101. 
Parentheses, significance of, in citing 
authors, 254. 
Paspalum,176, 178, 179. 
dilatatum, 179. 
dissectum, 146. 
minus, 179. 
notatum, 179. 
repens, 105, 146. 
Pasture-grasses, 33, 45. 
southern, 35. 
plants, 22. 
annual, 36. 
Pastures, cultivated, 29. 
permanent, 29. 
temporary, 36. 
native, 19. 
woodland, 30. 
Pedicel, 120-121. 
Penicillaria spicata, 186. 
