OHIO EXPERIMENT STATION: BULLETIN 175. 



Hogwort. 337 

 Honeysuckle Family, 359 

 Hop, 315 

 Horehound, 352 



Water, 351 

 Horse-nettle, 353 

 Horse-radish. 330 

 Horsetail. 304. 367 

 Horseweed, 364, 367 

 Hound 's-tongue. 349 

 Hungarian-grass. 308 

 Indian Hemp, 319 

 Indian Tobacco,. 360 

 Iron weed, 364 



Winged 369 

 44 Yellow, 369 

 Italian Millet. 308 

 Ivy, Poison, 310 

 Jamestown- weed. 355 

 Jerusalem Oak. 319 

 Jimsonweed, 355 

 Johnson-grass. 305 

 Jopye-weed, 365 

 Juba'sBush, 322 

 King Devil. 363 

 Knapweed. Brown, 374 

 Knawel, 325 

 Knot-grass. 372 

 Knot weed, 317 

 Kochia, 320 

 Kuhnia, 365 

 Lady's-thumb, 318 

 Lamb-lettuce. 359 

 Lamb's-quarters, 318 

 Larkspur. Field, 325 

 Laurel. 343 

 Laurel Family, 326 

 Leaf Mildews, 347. 365 

 Lenses for Seed Study, 297-9 

 Lettuce, Lamb, 359 

 Prickly. 362 

 M Strong-scented 362 

 41 Wild, 361 

 Willow. 362 

 Lily Familv, 314 



14 Day, 314 

 Live-for-ever, 332 

 Lobelia, 360 



" Great, 360 

 Loosestrife, Clammy, 341 



Family 341 

 Love-in-tangle. 332 

 Madder Familv, 359 

 Mallow Family, 339 

 " Glade, 340 

 " High, 340 

 "■ Indian. 340 

 44 Low. 339 

 Man-of-the-earth, 339 

 Mangel-wurzel, beetle on, 318 

 Mare's-tail, 352 

 Marigold. Fetid, 369 

 Marsh-cress, 330 

 Marsh Elder. 363 

 Matrimony Vine, 355 

 May-grass, 311 

 Mayweed. 370 



Meadow-grass, Frank's, 310 

 " Low. 310 



" Pungent, 310 



Meadow-parsnip, 316 

 Meadow-rue, 326 

 Medick, Black, 335 

 Melilot. White. 335 

 Mercury, Three seeded, 338 

 Mexican Drop-seed. 309 

 Mexican Poppv. 320 

 Mexican Tea. 319 

 Miami Mist, 349 

 Milfoil, 370 

 Milkweed. 345 



Climbing, 346 

 " Family. 315 

 44 Swamp, 345 

 Millet. 306 



" Italian. 308 

 Polish, 307 

 Mint Familv, 351 

 Mist Flower, 365 



Moneywort , 343 

 Morning-glorv, 347 



Familv. 346 

 Field, 346 

 Motherwort, 352 

 Mugwort, 371 

 Mulberry Family, 315 

 Mullen, 355 



44 Moth, 355 

 " Woolly, 355 

 Mustard, Black, 329 

 Family. 326 

 " Garlic, 330 

 44 Hare's-ear, 332 

 44 Indian, 328 



Spraying for, 329 

 Spreading, 331 

 44 Tumbling, 328 



White, 328 

 Wild. 329 

 Myrtle, so-called, 344 

 Nettle, Dead'. 352 



Familv. 316 

 " Hedge, 352 

 *' Stinging, 316 

 " Tall, 316 

 Niggerhead, 368 

 Nightshade, Black, 354 

 Nimble Will, 309 

 Nonesuch, 335 

 Nutgrass, 313 

 Oak, Jerusalem, 319 

 Oak, Poison, 339 

 Oat, Wild, 309 

 Oats, Weeds in. 377 

 Oat-grass. Wild, 309 

 Onion, Wild, 314 

 Orache, 319 



Silvery, 319 

 44 Western. 320 

 Orpine Family. 332 

 Orpine, Garden. 332 

 Osage Orange, 315 

 Oxeye, 368 



Ox-tongue, Bristly, 360 

 Oyster-plant, 360 

 Parsley Family, 342 

 Parsnip, Cow, 342 



Meaduw, 343 

 " Wild, 342 

 Pea Familv. 332 

 Pea, Partridge, 334 

 Peach, 334 

 Penny-cress, 328 

 Pennyroyal, 351 



" Bastard, 352 



Peppergiass, 327 



Field, 327 

 44 Roadside, 327 



Peppermint, 351 

 Periwinkle, 344 

 Persimmon, 344 

 Phacelia, 349 

 Pigeon-grass, 307 

 Pigeonweed, 349 

 Pigweed, 321 



M Family, 320 

 " Rough, 321 

 Pimpernel, Scarlet, 344 

 Pink, Deptford, 324 

 Pines, 304 

 Plantain, 313 

 Plantain, Bracted, 357 

 Broad, 358 

 Buck, 358 

 44 Family, 357 



44 Narrow, 358 



" Rugel's Broad, 358 



" Sandwort, 357 



PleurisvToot, 345 

 Plum Familv, 334 

 Poison, Hemlock, 343 

 44 Ivy, 339 

 44 Oak, 339 

 Poke 322 



Pokeweed Family, 322 

 Polanisia. 332 

 Pond weed Family, 305 



Pondweed. Floating. 305 

 Poplars. 315 

 Poppv Familv. 326 

 •" Corn, 326 

 11 Field. 326 

 >4 Mexican, 326 

 •' Prickly. 321 i 

 Porcupine-grass, 308 

 Potato Familv. 353 

 Potato-vine. Wild. 346 

 Povertv-grass, 308. 309 

 Prickly-poppy. 326 

 Primrose, Evening. 341 

 Familv, 343 

 Prince's Feather, 318 

 Puccoon, 350 

 Pulse Familv, 303 

 Purslane, 322 



Familv. 322 

 14 Speedwell. 341 



Water, 341 

 Pursley, 322 

 Quack-grass, 312 

 Rabbit-foot, 336 

 Radish. Wild, 330 

 Ragweed. 363 

 Ragweed Family. 363 

 44 Tall. 364 



14 Western, 364 



Ranstead. 355 

 Red-root, 321,349 

 Red-top, Tall, 310 

 Reed Canarv-grass, 308 

 Ribgrass. 358 

 Roadside weeds, 302 

 Rock-cress, 331 

 Roman Wormwood, 363 

 Rose Familv. 332 

 Rose, Wild, 333 

 Rosin weed, 368 

 Running-brier. 332 

 Rush Cattail-grass, 309 

 44 Familv, 313 

 " Slender, 313 

 44 Soft, 313 

 Rye-grass, Perennial, 311 

 Sabbatia, 344 

 Salad, Worm, 360 

 Salsify, Meadow. 360 



44 Purple, 360 

 Sand-brier, 353 

 Sand-bur, 308, 354 

 Sassafras, 326 

 Sedge Family, 313 

 Sedges, 313 

 Seedbox. 341 



Seeds found in clover,etc.,375-7 

 Self-heal, 352 

 Senna Familv. 334 

 Senna, Wild, 334 

 Shepherd's-purse, 331 

 Sheepkill, 343 

 Sida, 340 

 Silkweed. 345 

 Smart weed. 318 



4> Pennsylvania. 317 

 Snakeroot, Black". 325 

 44 White, 365 



Sneezeweed. 369 

 Soapwort, 323 

 Sorrel, 316 



44 Horse. 316 

 Sour-grass, 337 

 Sow-thistle, 361 



44 Field, 361 

 Spanish Needles, 369 

 Spear-grass, Low, 311 

 Spearmint, 351 

 Speedwell, Common, 356 

 Corn 

 44 Field, 



44 Purslane. 356 



44 Thvme-leaved, 356 



Spelt, 312 

 Spurge, 338 



c . 

 44 Familv, 337 

 44 Flowering. 338 



Spotted, 338 



