iv Preface 



Figures 109 and 703 are from photographs by Dr. C. F. Millspaugh. 



Figures 120, 652, and 655 are from photographs furnished by Mr. C. L. Pollard. 



Figures 153, 356, and 717 are from photographs by Miss Helen M. Ingersoll. 



Figures 178, 226, 290, and 310 are from photographs by N. L. Britton. 



Figures 198, 203, 229, 241, 339, 362, 376, 397, 457, 511, 535, 560, 596, and 675 

 are from photographs by J. A. Shafer. 



Figures 258, 262, 268, 272 to 275, 277, 296 to 298 are from the Bulletin of the 

 New York Botanical Garden, Vol. 2. 



Figure 270 is from a photograph furnished by Prof, E. O. Wooton. 



Figures 337, 477, 482, 525, 546, 563, and 661 are from photographs by Mr. 

 Geo. V. Nash. 



Figure 580 is from a photograph furnished by Dr. J. N. Rose. 



Figures 3 to 16, 18, 20, 21, 24, 28, 29, 31, 33, 35, 38, 40, 41, 45 to 49, 53 to 56, 

 59 to 67, 69, 70, 72 to 77, 80, 81, 83 to 90, 93 to loi, 103, III to 119, 121, 124, 125, 

 130 to 132, 134, 136, 141, 142, 144, 155 to 157, 159, 161, 162, 164, 165, 167, 169, 

 170, 173, 174, 179 to 182, 184, 187, 200, 201, 204, 208 to 210, 218, 220 to 224, 232, 

 ^2>2,, 237, 239, 242 to 244, 246, 248, 252, 254, 257, 259 to 261, 263, 264, 267, 269, 

 271, 276, 278 to 282, 285, 287, 288, 293 to 295, 299, 302, 303, 311, 312, 315 to 320, 

 322, 323, 327 to 332, 341, 354, 366 to 372, 374, 380, 382, 386, 388, 389, 392 to 396, 

 398 to 400, 402, 403, 405 to 426, 428, 431 to 442, 444 to 446, 448, 450, 455, 460, 461, 

 465, 466, 468, 469, 471 to 474, 508, 509, 514 to 524, 527, 528, 530 to 534, 536 to 539, 

 543 to 545, 547 to 554, 556, 557 562, 564, 566, 569, 573, 575, 576, 578, 583 to 586, 

 590 to 592, 594, 598, 599, 603 to 605, 607 to 609, 612, 613, 616, 617, 619 to 626, 

 628 to 634, 636, 637, 639, 640, 642 to 649, 651, 653, 654, 656, 658 to 660, 662 to 671, 

 673, 678, 684, 686, 689, 691, 693 to 698, 700 to 702, 704 to 709, 711, 713 to 715, 718, 

 720, 722, 724 to 726, 728, 730 to 733, 735 to 738, 741 to 743, 746 to 754, 756, 760, 

 761, 763 to 765, 767 to 773, and 775 are from drawings by Miss Jessie H. Foster. 



Figures i, 17, 19, 22, 23, 25, 26, 34, 36, 37, 39, 42 to 44, 51, 52, 57, 58, 68, 



71, 79, 82, 92, 122, 123, 126 to 128, 133, 135, 137, 138, 140, 143, 146, 147, 150 to 



152, 154, 158, 160, 163, 166, 168, 171, 172, 175 to 177, 183, 185, 186, 188, 189, 191 



to 197, 199, 202, 206, 213, 215, 217, 219, 225, 227, 228, 230, 231, 235, 238, 240, 



247, 249 to 251, 253, 255, 256, 266, 283, 284, 286, 289, 291, 292, 300, 301, 304, 305, 



307 to 309, 313, 314, 321, 324 to 326, 338, 342 to 344, 346, 347, 349, 352, 353, 355, 



361, Z^^Z, 364, 373> 375. 377 to 379, 381, 383 to 385, 387, 390, 391, 401, 404, 427, 



429, 43o> 443. 447. 449. 45 1 to 454, 456, 458, 459, 462 to 464, 467, 490, 494, 497, 



499. 500, 510, 512, 513, 526, 529, 542, 555, 558, 559, 561, 565, 568, 570 to 572, 574, 



577, 579. 581, 582, 587 to 589, 593, 595, 597, 600 to 602, 606, 610, 611, 614, 615, 



618, 627, 635, 638, 641, 650, 672, 674, 676, 677, 679 to 681, 683, 685, 687, 688, 690, 



692, 699, 710, 712, 716, 719, 721, 723, 727, 729, 734, 740, 744, 745, 757 to 759, 766, 



774, 776, 777, 778, 780, and 781 are from "Illustrated Flora of the Northern States 



and Canada. 



New York Botanical Garden, 



February, 1908. ' 



