• K. H. McKnight 11356, United States of America
• I. F. Tidestrom 11119, United States of America
• I. F. Tidestrom 9633, United States of America
• P. Train 3077, United States of America
• P. Train 2833, United States of America
• G. J. Goodman 1713, United States of America
• D. H. Kinnaman D. K.38, United States of America
• A. P. Pinzl 8920, United States of America
• J. T. Howell 50352, United States of America
• A. P. Pinzl 10433, United States of America
• A. P. Pinzl 10559, United States of America
• J. D. Armstrong 118, United States of America
• A. P. Pinzl 8970, United States of America
• A. P. Pinzl 9058, United States of America
• LeDoux 1301, United States of America
• B. Rogers 875, United States of America
• S. G. Stokes, United States of America
• R. Foster 5874, United States of America
• R. Foster 7488, United States of America
• M. E. Jones 6538, United States of America
• C. F. Baker 667, United States of America
• M. E. Jones 5169, United States of America
• M. E. Jones, United States of America
• L. Williams 584, United States of America
• R. M. Lanner 3010, United States of America
• C. F. Marx, United States of America
• S. L. Welsh 10773, United States of America
• S. L. Welsh 16143, United States of America
• S. L. Welsh 2688, United States of America
• S. L. Welsh 3962, United States of America
• S. L. Welsh 6317, United States of America
• S. L. Welsh 6537, United States of America
• K. S. Erdman 259, United States of America
• G. I. Baird 286, United States of America
• A. Huber 639, United States of America
• R. H. Hevly, United States of America
• R. H. Hevly, United States of America
• J. Davey 166, United States of America
• L. C. Higgins 11207, United States of America
• W. H. Baker 13261, United States of America
• W. H. Baker 10506, United States of America
• W. H. Baker 13214, United States of America
• W. H. Baker 9431, United States of America
• J. H. Christ 9837, United States of America
• R. R. Wilson 1955, United States of America
• R. R. Wilson 1934, United States of America
• R. R. Wilson 2007, United States of America
• R. R. Wilson 2019, United States of America
• D. H. Mansfield 93248, United States of America
• V. Duran 3471, United States of America
• R. S. Mitchell 1715, United States of America
• L. S. Rose 58088, United States of America
• L. C. Wheeler 4017, United States of America
• R. E. Coombs 2966, United States of America
• E. Zunino 4633, United States of America
• A. C. Blauer 26, United States of America
• C. F. Baker 1197, United States of America
• A. A. Heller 11116, United States of America
• L. R. Miller 55, United States of America
• M. J. Williams 79 1103, United States of America
• P. H. Raven 20637, United States of America
• P. H. Raven 13432, United States of America
• P. Train 1182, United States of America
• A. P. Pinzl 10983, United States of America
• A. P. Pinzl 9336, United States of America
• A. P. Pinzl 9355, United States of America
• A. P. Pinzl 9337, United States of America
• K. T. Harper s.n., United States of America
• S. Mitchell 55, United States of America
• W. L. Stern 149, United States of America
• W. L. Stern 84, United States of America
• W. L. Stern 81, United States of America
• W. L. Stern 22, United States of America
• M. Honer 578, United States of America
• J. A. Alexander 1566, United States of America
• J. F. Smith 4576, United States of America
• N. H. Holmgren 14148, United States of America
• S. Goodrich 26715(4), United States of America
• T. Cramer 3075, United States of America
• J. C. Lendemer 12833, United States of America
• J. C. Lendemer 13566, United States of America
• D. E. Atha 5640, United States of America
• D. E. Atha 6501, United States of America
• D. E. Atha 6920, United States of America
• D. E. Atha 7046, United States of America
• D. E. Atha 6993, United States of America
• D. E. Atha 7099, United States of America
• D. E. Atha 8191, United States of America
• D. E. Atha 8242, United States of America
• J. M. Glennon 1723, United States of America
• J. M. Glennon 1756, United States of America
• J. M. Glennon 1756, United States of America
• A. P. Pinzl 14192, United States of America
• D. E. Atha 10403, United States of America
• E. J. Schreiner 9, United States of America
• Populus tremuloides Michx.
• W. M. Benner 8537, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• A. J. McCosh s.n., United States of America
• A. J. McCosh s.n., United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• T. W. Edmondson 798, United States of America
• s.n., United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• R. C. Friesner 10202, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• J. M. Fogg Jr. 17773, United States of America
• H. N. Moldenke 9478, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• H. E. Ahles 86513, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• R. C. Friesner s.n., United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• K. M. Wiegand 2096, United States of America
• K. M. Wiegand s.n., United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• K. M. Wiegand 2096, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• S. L. Glowenke 5789, United States of America
• E. C. Earle 2904, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• H. N. Moldenke 9477, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• D. E. Atha 14785, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• D. E. Atha 15623, United States of America
• T. Dieffenbach TNF-0545A, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• S. Watson 1107, United States of America
• S. Watson 1104, United States of America
• P. A. Rydberg 6362, United States of America
• P. A. Rydberg 1021, United States of America
• P. A. Rydberg 6361, United States of America
• N. D. Atwood 28001, United States of America
• N. D. Atwood 6370, United States of America
• A. Nelson 8243, United States of America
• A. Nelson 23, United States of America
• E. J. Palmer 34330, United States of America
• E. J. Palmer 33434, United States of America
• L. C. Hinckley 88, United States of America
• D. S. Correll 13547, United States of America
• L. C. Hinckley 88, United States of America
• E. J. Palmer 34352, United States of America
• J. W. Thompson 14154, United States of America
• Populus tremuloides Michx.
• O. B. Metcalfe 1508, United States of America
• O. B. Metcalfe 1508, United States of America
• F. C. Seymour 224, United States of America
• M. Honer 1370, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• E. L. Johnston 476, United States of America
• E. L. Johnston 177, United States of America
• N. Taylor 2400, United States of America
• R. Warnick 6, United States of America
• S. P. Churchill 12422, United States of America
• M. H. Nee 54479, United States of America
• S. L. Clarke s.n., United States of America
• S. L. Clarke 41, United States of America
• S. L. Clarke 44, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• L. R. Landrum 9765, United States of America
• W. H. Leggett s.n., United States of America
• F. C. MacKeever N1023, United States of America
• F. C. MacKeever N1025, United States of America
• F. C. MacKeever N1023, United States of America
• F. C. MacKeever N968, United States of America
• F. C. MacKeever N967, United States of America
• A. Rehder 362, United States of America
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• N. Taylor 2114, United States of America
• D. B. Dunn 1776, United States of America
• T. G. Yuncker 5327, United States of America
• N. Taylor 2278, United States of America
• W. H. Welch 19375, United States of America
• W. H. Welch 323A, United States of America
• W. H. Welch 332, United States of America
• W. H. Welch 6186, United States of America
• S. R. Hill 23093, United States of America
• S. R. Hill 21665, United States of America
• S. R. Hill 11608, United States of America
• S. R. Hill 14584, United States of America
• C. Wright 1870, United States of America
• G. V. Nash s.n., United States of America
• Populus tremuloides Michx.
• C. H. Müller 8352, United States of America
• C. H. Müller 7967, United States of America
• H. R. Loconte 1053, United States of America
• Populus tremuloides Michx.
• F. W. Hunnewell 6307, Canada
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• C. D. Howe 555, Canada
• J. L. C. Marie-Victorin 18875, Canada
• J. L. C. Marie-Victorin 33750, Canada
• J. L. C. Marie-Victorin 11231, Canada
• J. L. C. Marie-Victorin 33810, Canada
• J. L. C. Marie-Victorin 1134, Canada
• J. F. Collins s.n., Canada
• J. F. Collins s.n., Canada
• P. F. Maycock 9219, Canada
• J. A. E. Rouleau 2518, Canada
• J. F. Collins s.n., Canada
• B. Boivin 14223, Canada
• Frère Rolland-Germain 412, Canada
• Frère Rolland-Germain 2431, Canada
• J. L. C. Marie-Victorin 34218, Canada
• J. L. C. Marie-Victorin 46824, Canada
• Lucien 386, Canada
• Frère Rolland-Germain 15008, Canada
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Collector unspecified s.n., Canada
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Populus tremuloides Michx.
• Collector unspecified s.n., United States of America
• Populus tremuloides Michx.
• Douglas s.n., United States of America
• B. Legler 5969, United States of America
• N. L. Britton s.n., United States of America
• N. L. Britton s.n., United States of America
• W. H. Leggett s.n., United States of America
• W. H. Leggett s.n., United States of America
• W. H. Leggett s.n., United States of America
• J. H. Lehr 842, United States of America
• W. C. Ferguson s.n., United States of America
• W. C. Ferguson 2844, United States of America
• J. V. Monachino 303, United States of America
• H. W. Pretz 2435, United States of America
• H. W. Pretz 2468, United States of America
• H. M. Raup 7373, United States of America
• H. P. Brown 8264, United States of America
• H. N. Moldenke 1493, United States of America
• H. N. Moldenke 1493, United States of America
• H. N. Moldenke 1659, United States of America
• H. N. Moldenke 1659, United States of America
• H. N. Moldenke 2487, United States of America
• C. C. Curtis s.n., United States of America
• D. S. Correll 18296, United States of America
• J. Reitzel 4356, United States of America
• J. Jack 1376, United States of America
• D. Berghius 11910, United States of America
• C. L. Hitchcock 12551a, United States of America
• S. L. Welsh 4145, United States of America
• F. C. MacKeever N967, United States of America
• R. W. Spellenberg 5982, United States of America
• H. W. Pretz 2736, United States of America
• A. T. Beals s.n., United States of America
• N. L. Britton s.n., United States of America
• W. H. Leggett s.n., United States of America
• A. R. Bechtel 12996, United States of America
• G. Fairbanks 26, United States of America
• J. Wolf 832, United States of America
• C. E. O. Kuntze 3052, United States of America
• A. J. McCosh s.n., United States of America
• A. J. McCosh s.n., United States of America
• J. I. Northrop s.n., United States of America
• F. E. Clements 163, United States of America
• M. E. Jones 93, United States of America
• J. H. Cowan 2323, United States of America
• A. J. McCosh s.n., United States of America
• J. M. Bigelow 1361, United States of America
• P. C. Standley 4123, United States of America
• O. B. Metcalfe 269, United States of America
• W. Hess 2397, United States of America
• J. M. Cowen s.n., United States of America
• L. M. Underwood 61, United States of America
• A. Nelson 3657, United States of America
• C. L. Hitchcock 8813, United States of America
• J. H. Christ 5939, United States of America
• J. H. Christ 262, United States of America
• J. G. Witt 1046, United States of America
• J. B. Leiberg 1522, United States of America
• J. H. Christ 9620, United States of America
• J. H. Christ 207, United States of America
• J. H. Christ 5122, United States of America
• J. H. Christ 10902, United States of America
• J. H. Christ 10371, United States of America
• C. L. Johnson 1470, United States of America
• W. H. Baker 8679, United States of America
• W. H. Baker 12093, United States of America
• J. H. Christ 4685, United States of America
• J. H. Christ 10831, United States of America
• W. H. Baker 10522, United States of America
• L. N. Goodding 654, United States of America
• G. J. Goodman 3165, United States of America
• H. W. Graham 8-18-1, United States of America
• E. C. Yuncker 12248, United States of America
• A. Nelson 6769, United States of America
• F. Tweedy 2449, United States of America
• A. Nelson s.n., United States of America
• A. Nelson 539, United States of America
• J. Haines 5272, United States of America
• C. L. Porter 3043, United States of America
• F. Tweedy 3447, United States of America
• B. E. Nelson 6095, United States of America
• K. H. Dueholm 10962, United States of America
• P. Kenney 129, United States of America
• P. Kenney 119, United States of America
• S. L. Welsh 2118, United States of America
• J. H. Cowen 2324, United States of America
• W. J. Hess 8253, United States of America
• E. L. Greene s.n., United States of America
• W. H. Leggett s.n., United States of America
• N. L. Britton, United States of America
• M. McKee 97, United States of America
• M. McKee 1257, United States of America
• W. M. Benner 6695, United States of America
• R. Massatti 4901, United States of America
• E. W. Wood 4232, United States of America
• W. N. Suksdorf 10687, United States of America
• W. N. Suksdorf 10176, United States of America
• D. S. Correll 18296, United States of America
• E. A. Mearns 442, United States of America
• P. C. Standley 14685, United States of America
• W. W. Eggleston 6441, United States of America
• P. C. Standley 6168, United States of America
• E. J. Palmer 37061, United States of America
• G. N. Jones 14885, United States of America
• F. Tweedy 5614, United States of America
• Collector unknown s.n., United States of America
• C. F. Baker 267, United States of America
• R. J. Preston 8340, United States of America
• F. C. MacKeever N869, United States of America
• A. A. Heller 10471, United States of America
• R. McVaugh 14474, United States of America
• L. N. Goodding 1215, United States of America
• R. M. Lanner 3, United States of America
• F. C. MacKeever N899, United States of America
• D. J. Pinkava 16906, United States of America
• G. T. Hastings s.n., United States of America
• F. E. Leonard 247, United States of America
• W. C. Brumbach 8559, United States of America
• H. C. Hanson A755, United States of America
• W. W. Eggleston 1589, United States of America
• B. E. Nelson 1356, United States of America
• E. Foley 2937, United States of America
• R. L. Hartman 62702, United States of America
• B. Elliott 2645, United States of America
• E. Gilbert 408, United States of America
• J. W. Thompson 14498, United States of America
• R. L. Hartman 67377, United States of America
• E. A. Holt 313, United States of America
• H. D. House 24461, United States of America
• F. C. MacKeever MV675, United States of America
• R. E. Brooks 14796, United States of America
• J. R. Crutchfield 3133, United States of America
• F. C. MacKeever MV696, United States of America
• B. E. Nelson 64666, United States of America
• D. E. Boufford 5437, United States of America
• J. Huber 342, United States of America
• J. W. Thompson 8556, United States of America
• J. W. Thompson 14498, United States of America
• J. W. Thompson 11721, United States of America
• H. St. John 2264, United States of America
• Collector unspecified 8229, United States of America
• W. H. Leggett s.n., United States of America
• A. A. Heller 11065, United States of America
• I. W. Clokey 8310, United States of America
• A. P. Pinzl 7458, United States of America
• K. M. Wiegand 375, United States of America
• A. J. Grout s.n., United States of America
• D. C. Thornburg 720, United States of America
• P. Wilson 02286, United States of America
• C. Kay s.n., United States of America
• Collector unspecified s.n., United States of America
• Populus tremuloides Michx.

• D. E. Atha 10403, United States of America
• D. E. Atha 6501, United States of America
• D. E. Atha 6920, United States of America
• D. E. Atha 6993, United States of America
• D. E. Atha 7046, United States of America
• D. E. Atha 7099, United States of America
• D. E. Atha 5640, United States of America
• D. E. Atha 8191, United States of America
• D. E. Atha 8242, United States of America
• D. E. Atha 14785, United States of America
• D. E. Atha 15623, United States of America

• Populus tremuloides Michx.