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Published in Proceedings of The Biological Society of Washington, in 1967, in volume 80, pages 35-39
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Published in The Auk, in 1914, in volume 31, pages 257-258
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Published in Botanical Gazette, in 1905, in volume 40, issue 5, pages 376-380
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Published in The Auk, in 1912, in volume 29, pages 533-534
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Published in Proceedings of The Biological Society of Washington, in 1913, in volume 26, pages 167-168
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Published in Rhodora, in 1950, in volume 52, issue 613, pages 8-18
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Published in Rhodora, in 1924, in volume 26, issue 307, pages 135-144
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Published in Botanical Gazette, in 1921, in volume 72, issue 4, pages 220-236
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Published in The Wilson Bulletin, in 1905, in volume 17, issue 3, pages 97-99
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Published in Journal of the Arnold Arboretum, in 1943, in volume 24, pages 103-106
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Published in The Auk, in 1912, in volume 29, pages 535
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Published in Rhodora, in 1947, in volume 49, issue 578, pages 37-49
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Published in Journal of The Arnold Arboretum, in 1946, in volume 27, issue 4, pages 371-385
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Published in Proceedings of the Entomological Society of Washington, in 1927, in volume 29, pages 125-129
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Published in Journal of Raptor Research, in 1992, in volume 26, issue 1, pages 43
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Published in Bulletin of The African Bird Club, in 2005, in volume 12, issue 1, pages 40-41
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Published in The Auk, in 1910, in volume 27, pages 263-271
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Published in Gulf Research Reports, in 1973, in volume 4, issue 2, pages 186-190
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Published in Bothalia, in 1922, in volume 1, pages 83-86
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Published in Bothalia, in 1922, in volume 1, pages 87-96
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Published in Bothalia, in 1922, in volume 1, pages 33-38
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