VI 



INDEX 



Myrtle-tree 529 



Myrtle oak 297 



Nakedwood 698 



Narrowberry 699 



Narrowcone pine 704 



Narrowleaf cottonwood 667, 669 



Narrowleaf crab 453 



Narrowleaf willow 496 



Native plum 621 



Necklace poplar 667 



Netleaf oak 219 . 



Nettle-tree 403 



New England boxwood 523 



Newcastle thorn 459 



New Mexican locust 537 



New Mexican pinon 28 



Noble fir 157 



Nootka cypress 121 



North American red spruce 127 



North Carolina pine 49 



North Carolina shagbark hickory . 376 



Northern cork elm 385 



Northern spruce pine 19 



Northern white cedar 97 



Norway pine 61 



Nutmeg hickory .... 374 



Nutpine 28, 33, 68, 704 



Nuttall willow 472 



Oak-barked cedar Ill 



Obispo pine 69 



Ohio buckeye 649, 651 



Oldfield birch 585 



Oldfield pine 49 



Old man's beard 700 



Olivetree 337 



One-berry 403 



One-seed juniper 99 



Opossum wood 601 



Opuntias 694 



Oregon ash 421 



Oregon balsam 166 



Oregon crabapple 454 



Oregon fir 163 



Oregon maple 439 



Oregon oak 235 



Oregon pine 169 



Oregon white oak 235 



Oreodaphne 529 



Overcup oak 217, 223 



Osage appletree 511 



Osage orange 511 



Osier willow 496 



Pacific post oak 235 



Pacific yew 199 



Pale-leaf hickory 345 



Palmer oak 310 



Palms 691 



Palmetto 691 



Palo bianco 406 



Palo verde 556 



Paper birch 565, 583 



Paper mulberry 514 



Paradise-tree. . . 676 



Parry nut pine 19, 70t 



Parry pinon 7U3 



Parry's spruce 136 



Patton's spruce 196 



Peach oak 313 



Pea-flower locust 535 



Peawood 602 



Pear haw 459 



Pear thorn 459 



Pecan 357, 373 



Pecan nut 373 



Pecan tree 373 



Persimmon 517 



Pessimin 517 



Pigeonberry 452, 526 



Pigeon cherry 619 



Pignut 356, 361, 367 



Pignut hickory 367 



Pig walnut 361 



Pin cherry 619 



Pine 19 



Pink locust 555 



Pin oak 208, 247, 301 



Pinon 19, 28 



Pinon pine 28, 33 



Pin thorn 459 



Pitch pine 43, 45, 49, 63 



Planertree 397 



Plane-tree 607 



Plum 021,622 



Poison dogwood 697 



Poison elder 697 



Poison ivy 505 



Poison laurel 505 



Poison oak 697 



Poison sumach 697 



Poisontree 697 



Poisonwood 697, 701 



Pond apple 640 



Pond cypress 141 



Pond pine 57 



Poorfield pine 49 



Poor pine 51 



Poplar 487,673 



Poplar-leaved birch 585 



Popple 487,675 



Poppy ash 424 



Possum haw 646 



Possum oak 320 



Possumwood 517 



Port Orford cedar 123 



Post cedar 103, 109 



Post locust 535 



Post oak 223 



Poverty birch 585 



Powcohiscora ' :i~>"> 



Price oak Ml.") 



Pricklecone pine 69, 704 



Prickly ash 699 



Prickly pine 52 



Prickly spruce 136 



Prince's pine 70 



Puget sound pine 169 



