ILLUSTRATIONS 
PIGNUT, Fruiting Spray of (Carya porcina), 291 ; Fruiting Spray of (Carya mi- 
crocarpa), 293 
RED Bircu, Branch of, 296; Leaves of, 307; Strobiles of, 308 
SWEET BIRCH, Aments of, 296; Strobiles of, 312; Leaves of, 313 
PAPER BIRCH, Strobiles of, 302; Fruiting Sprays of, 303; Trunk of, 305 
YELLOW Bircu, Scales of, 297; Leaves of, 309 ; Strobiles of, 310 
WHITE Bircu, Strobiles of, 298 ; Fruiting Branch of, 299; Trunk of, 301 
ALDER, Fruiting Spray of, 315 
Hop Hornseam, Branch of, 316; Fruiting Spray of, 317; Aments of, 318 
Nornseam, Ament of, 320; Fruiting Spray of, 321 
ScaRLeT Oak, Aments of, 324; Flowers of, 325 
WHITE Oak, Leaf of, 327; Trunk of, 329; Fruiting Spray of, 331 
Post Oak, Leaves of, 333 ; Acorn of, 334 
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 
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 
Beak Oak, Acorn of, 368 ; Leaves of, 369 
Back Jack, Leaves of, 371; Acorn of, 372 
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 
LaARGE-TOOTHED ASPEN, Leaf of, 417; Fruiting Ament of, 417 
Swamp Cotronwoon, Leaf of, 420; Fruiting Ament of, 420 
Basa, Leaves of, 421, 423 Flowers of, 424; Fruiting Ament of, 424 
Corronwoop, Leaves of, 427; Winter Branch of, 426; Trunk of, 425; Stam- 
inate Aments of, 412; Pistillate Aments of, 412 
WHITE Poptar, Leaves of, 429; Aments of, 431, 433 
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