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  1. By: Regel, E. (Eduard),
    Publication info: Petropolis, 1875
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: New York Botanical Garden
  2. By: Gray, Asa, - Radlkofer, L. (Ludwig), - Rand, Edward L. (Edward Lothrop), - Rattan, Volney, - Ravenel, Henry William, - Redfield, John Howard, - Reeve, Lovell, - Regel, E. (Eduard), - Reichenbach, H. G. (Heinrich Gustav) - Reinsch, Paul Friedrich, - Reverchon, Julien,
    Publication info: [1837-1895]
    Holding Institution: Harvard University Botany Libraries
  3. By: Regel, E. (Eduard),
    Publication info: St. Petersburg, 1889
    Holding Institution: Smithsonian Libraries
  4. By: Regel, E. (Eduard),
    Publication info: S.-P.-B. [i.e. Saint Petersburg], V tipografii Ministerstva vnytrennikh giel, 1860
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: New York Botanical Garden
  5. By: Regel, E. (Eduard),
    Holding Institution: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
  6. By: Regel, E. (Eduard),
    Publication info: Petropoli, 1873-
    Holding Institution: University Library, University of Illinois Urbana Champaign
  7. By: Regel, E. (Eduard),
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: John Torrey Papers | New York Botanical Garden
  8. By: Schmitz, J. Joseph (Johann Joseph), - Regel, E. (Eduard),
    Publication info: Bonnae, H.B. Knig, 1841
    Holding Institution: New York Botanical Garden, LuEsther T. Mertz Library
    BHL Collections: New York Botanical Garden
  9. By: Avé-Lallemant, Julius Leopold Eduard, - Fischer, F. E. L. (Friedrich Ernst Ludwig), - Herder, Ferdinand Gottfried von., - Meyer, Carl Anton, - Regel, E. (Eduard), - Trautvetter, Ernst Rudolph von, - Imperatorskīǐ botanicheskīǐ sad Petra Velikago
    Publication info: [Petropoli], Hortus, 1835-1870
    Holding Institution: Harvard University Botany Libraries
  1. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1870-04-18
    Publication Info: [1837-1895]
  2. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1870-04-18
    Publication Info: [1837-1895]
  3. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1891-04-29
    Publication Info: [1837-1895]
  4. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1861-08-12
    Publication Info: [1837-1895]
  5. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1891-08-17
    Publication Info: [1837-1895]
  6. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1881-08-22
    Publication Info: [1837-1895]
  7. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1881-08-09
    Publication Info: [1837-1895]
  8. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1886-12-04
    Publication Info: [1837-1895]
  9. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1890-02-18
    Publication Info: [1837-1895]
  10. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1873-02-19
    Publication Info: [1837-1895]
  11. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1880-02-24
    Publication Info: [1837-1895]
  12. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1881-02-25
    Publication Info: [1837-1895]
  13. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1860-01-13
    Publication Info: [1837-1895]
  14. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1859-07-15
    Publication Info: [1837-1895]
  15. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1861-06-12
    Publication Info: [1837-1895]
  16. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1889-06-07
    Publication Info: [1837-1895]
  17. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1862-03-09
    Publication Info: [1837-1895]
  18. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1860-05-20
    Publication Info: [1837-1895]
  19. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1866-05-29
    Publication Info: [1837-1895]
  20. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1890-05-29
    Publication Info: [1837-1895]
  21. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1888-11-15
    Publication Info: [1837-1895]
  22. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1881-11-21
    Publication Info: [1837-1895]
  23. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1862-11-06
    Publication Info: [1837-1895]
  24. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1861-10-02
    Publication Info: [1837-1895]
  25. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1873-10-21
    Publication Info: [1837-1895]
  26. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1873-10-21
    Publication Info: [1837-1895]
  27. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1859-10-22
    Publication Info: [1837-1895]
  28. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1863-09-11
    Publication Info: [1837-1895]
  29. By: Regel, E. (Eduard),
    Type: Correspondence
    In: Asa Gray correspondence
    Date: 1863-09-11
    Publication Info: [1837-1895]