ILLUSTRATIONS 



PIGNUT, Fruiting Spray of ( Carya porclna ) , 291 ; Fruiting Spray of (Carya mi- 

 crocarpa], 293 



RED BIRCH, Branch of, 296; Leaves of, 307 ; Strobiles of, 308 



SWEET BIRCH, Aments of, 296 ; Strobiles of, 312 ; Leaves of, 313 



BIRCH, Strobiles of, 302 ; Fruiting Sprays of, 303 ; Trunk of, 305 

 BIRCH, Scales of, 297 ; Leaves of, 309 ; Strobiles of, 310 



WHITE BIRCH, Strobiles of, 298 ; Fruiting Branch of, 299 ; Trunk of, 301 



ALDER, Fruiting Spray of, 315 

 WH\3P HORNBEAM, Branch of, 316; Fruiting Spray of, 317; Aments of, 318 



HORNBEAM, Ament of, 320 ; Fruiting Spray of, 321 



SCARLET OAK, Aments of, 324 ; Flowers of, 325 

 \yWniTE OAK, Leaf of, 327 ; Trunk of, 329; Fruiting Spray of, 331 



POST OAK, Leaves of, 333 ; Acorn of, 334 

 1/BuR OAK, Acorn of, 336 ; Leaf of, 337 



CHESTNUT OAK, Leaves of, 339 ; Acorn of, 340 ; Trunk of, 341 



YELLOW OAK, Leaves of, 343 ; Acorn of, 344 



CHINQUAPIN OAK, Leaves of, 345 ; Acorn of, 346 



SWAMP WHITE OAK, Leaves of, 347 ; Acorn of, 348 

 V/RED OAK. Leaves of, 350, 351 ; Trunk of. 353 ; Acorn of, 354 



SCARLET OAK, Aments of, 324 ; Flowers of, 325 ; Leaves of, 355 ; Acorn of, 357 



BLACK OAK, Leaves of, 359, 361 ; Acorn of, 362 



SPANISH OAK, Leaves of, 363 ; Variant Leaves of, 364 ; Acorns of, 364 



PIN OAK, Acorn of, 366 ; Leaves of. 367 



BEAR OAK, Acorn of, 368 ; Leaves of, 369 



BLACK JACK, Leaves of, 371 ; Acorn of, 372 

 i SHINGLE OAK, Leaves of, 373 ; Acorn of, 374 



WILLOW OAK, Acorn of, 375 ; Leaves of, 376 



BEECH, Leaves of, 378 ; Fruiting Spray of, 379 ; Flowers of, 380 ; Flower Clus- 

 ters of, 380 ; Tree, 381 ; Trunk of, 385 



CHESTNUT, Leaf of, 387 ; Burs of, 389 ; Trunk of, 391 



WILLOW, Flowers of, 394 



"BLACK WILLOW, Staminate Flower of, 396; Pistillate Flower of, 396; Leaves 



of, 397 



PEACH WILLOW, Leaves of, 398 



SHINING WILLOW, Leaves of, 399 



LONGLEAF WILLOW, Leaf of, 400 



BEBB WILLOW, Leaves of, 402 



GLAUCOUS WILLOW, Leaves of, 404 



WHITE WILLOW, Leaves of, 406 



CRACK WILLOW, Leaves of, 407 

 \ WEEPING WILLOW, Leaves of, 411 

 >,\ ASPEN, Flowers of, 413 ; Leaves' of, 415 



v\ LARGE-TOOTHED ASPEN, Leaf of, 417 ; Fruiting Ament of, 417 

 X\SWAMP COTTONWOOD, Leaf of, 420; Fruiting Ament of, 420 



BALSAM, Leaves of, 421, 423 ; Flowers of, 424 ; Fruiting Ament of, 424 



COTTONWOOD, Leaves of, 427 ; Winter Branch of, 426 ; Trunk of, 425 ; Stam- 

 inate Aments of, 412 ; Pistillate Aments of, 412 



WHITE POPLAR, Leaves of, 429 ; Aments of, 431, 433 



