452 INDEX. 



Page. 



Jerusalem artichoke . 431 



Jerusalem oak 319 



Jimson weed 402 



Juncaceae 304 



Juncus 304 



June-grass 300 



Kentucky bluegrass \ 300 



King head 415 



Knawel 329 



Knot-grass 306 



Knotweed 329 



Labiatae 398 



Lactuca 434 



Lady's night-cap 391 



Lady's thumb 309 



Lamb's quarters 318 



Lamium 398 



Lap-love 390 



Lappula , 394, 395 



Large-bracted plantain 409 



Large crab-grass , 296 



Leaflet, one of the divisions or blades of a compound leaf, as seen in the leaf of a locust tree. 



Leaf y-bracted tickseed 420 



Leafy spurge 373 



Leguminosae 360 



Leonurus 399 



Leontodon 435 



Lepidium 350, 351, 352 



Leptilon 428 



Lesser clover dodder 392 



Lettuce 414, 434 



Liliaceae 304 



Lily family 304 



Linaria 405 



Linear, very narrow with the margins parallel or nearly so. 



Lithospermum 395 



Loculus, the cavity of an ovary or anther. 



Lotus 361 



Low cudweed 429 



Low hop clover 367 



Low spear grass 298 



Lucerne 362 



Lychnis 332 



Lyrate, pinnatifid, with the lobes decreasing in size toward the base. 



Lysimachia 387 



Madder family 412 



Mallow family 378 



Malva 386 



Mammoth clover 366 



Maple-leaved goosefoot 320 



Mare's-tail 428 



Marigold 419 



Marsh elder 433 



Marubium 400 



Medicago 362 



Melilotus 363 



Mercury, three-seeded 371 



Mexican tea 318 



Milfoil 414 



m. m. millimeter, see ruled lines on last page. 



Milkweed family 389 



Mint family 378 



Mollugo 329 



Moneywort 387 



Morning-glory family 390 



Mossy stonecrop 356 



