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Published in John Ball letters to Asa Gray, 1876-1888, pages 1-2

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Published in Kirtlandia, in 2006, in volume 55, pages 1-42

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Published in Botanical Gazette, in 1899, in volume 27, issue 4, pages 309-314

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Published in Phytologia, in 2008, in volume 90, issue 2, pages 123-133

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Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 156-158

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Published in Botanical Gazette, in 1921, in volume 72, issue 1, pages 1-30

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Published in The Wilson Bulletin, in 1909, in volume 21, issue 1, pages 38-40

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Published in Proceedings of The Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, pages 188-189

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Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1889, in volume 41, issue 2, pages 280-281

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Published in Torreya, in 1909, in volume 9, issue 3, pages 45-54

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Published in The Auk, in 1913, in volume 30, pages 77-81

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Published in The Wilson Bulletin, in 1916, in volume 28, issue 3, pages 106-122

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Published in Nautilis, in 1944, in volume 57, pages 86-87

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Published in Torreya, in 1902, in volume 2, issue 8, pages 122-124

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Published in Ibis, in 1900, in volume 6, issue 4, pages 573-606

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Published in The Auk, in 1911, in volume 28, pages 155-168

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Published in The Wilson Bulletin, in 1928, in volume 40, issue 1, pages 29-38

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Published in Madroño, in 1993, in volume 40, issue 4, pages 287-288

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Published in Biol Bull, in 1974, in volume 146, pages 88-99

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Published in Entomological News, Philadelphia, in 1946, in volume 57, pages 125-127

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Published in Journal of The New York Entomological Society, in 1913, in volume 21, pages 69-71

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Published in The Auk, in 1913, in volume 30, pages 406-418

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Published in The Wilson Bulletin, in 1908, in volume 20, issue 3, pages 146-150

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Published in The Wilson Bulletin, in 1916, in volume 28, issue 4, pages 157-171

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Published in The Wilson Bulletin, in 1925, in volume 37, issue 1, pages 5-13

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Published in The Wilson Bulletin, in 1925, in volume 37, issue 3, pages 129-132

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Published in The Wilson Bulletin, in 1930, in volume 42, issue 1, pages 3-10

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Published in Proceedings of The Zoological Society of London, in 1913, in volume 1913, pages 855-860

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Published in The Auk, in 1889, in volume 6, pages 72-74

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Published in Pacific Science, in 1968, in volume 22, issue 4, pages 458-464

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Published in The Auk, in 1897, in volume 14, pages 347-357

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Published in Journal of The New York Entomological Society, in 1940, in volume 48, issue 1, pages 33-36

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Published in Journal of The New York Entomological Society, in 1941, in volume 49, issue 2, pages 185-187

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Published in The Wilson Bulletin, in 1906, in volume 18, issue 3, pages 81-83

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Published in The Wilson Bulletin, in 1909, in volume 21, issue 3, pages 155-158

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Published in The Wilson Bulletin, in 1910, in volume 22, issue 3/4, pages 133-171

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Published in The Wilson Bulletin, in 1912, in volume 24, issue 1, pages 18-21

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Published in The Wilson Bulletin, in 1913, in volume 25, issue 4, pages 153-166

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Published in Biol Bull, in 1969, in volume 137, pages 535-546

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Published in Journal of the New York Entomological Society, in 1910, in volume 18, pages 173-197

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Published in The Auk, in 1898, in volume 15, pages 14-22

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Published in The Wilson Bulletin, in 1915, in volume 27, issue 3, pages 369-393

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Published in Madroño, in 1991, in volume 38, issue 2, pages 130-138

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Published in NAUTILUS, in 2017, in volume 131, issue 1, pages 43-49

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Published in Journal of The New York Entomological Society, in 1913, in volume 21, pages 43-54

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Published in The Auk, in 1912, in volume 29, pages 240-241

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Published in Journal of The New York Entomological Society, in 1924, in volume 32, issue 4, pages 206-215

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