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Published in Proceedings of The Biological Society of Washington, in 1951, in volume 64, pages 65-72
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Published in Proceedings of The Biological Society of Washington, in 1947, in volume 60, pages 149-163
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Published in Proceedings of The Biological Society of Washington, in 1952, in volume 65, pages 39-54
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Published in Proceedings of The Biological Society of Washington, in 1948, in volume 61, pages 171-174
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Published in Proceedings of The Biological Society of Washington, in 1958, in volume 71, pages 119-124
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Published in Rhodora, in 1913, in volume 15, issue 180, pages 225
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Published in Proceedings of The Biological Society of Washington, in 1955, in volume 68, pages 47-58
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Published in Proceedings of The Biological Society of Washington, in 1955, in volume 68, pages 113-123
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Published in Proceedings of The Biological Society of Washington, in 1960, in volume 73, pages 1-3
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Published in Proceedings of The Biological Society of Washington, in 1961, in volume 74, pages 3-6
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Published in Proceedings of The Biological Society of Washington, in 1961, in volume 74, pages 245-247
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Published in Rhodora, in 1903, in volume 5, issue 56, pages 196-197
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Published in Rhodora, in 1919, in volume 21, issue 251, pages 208
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Published in Rhodora, in 1914, in volume 16, issue 185, pages 96
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Published in Proceedings of The Biological Society of Washington, in 1952, in volume 65, pages 89-105
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Published in Proceedings of The Biological Society of Washington, in 1957, in volume 70, pages 119-127
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Published in Proceedings of The Biological Society of Washington, in 1956, in volume 69, pages 157-165
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Published in Proceedings of The Biological Society of Washington, in 1959, in volume 72, pages 121-126
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Published in Proceedings of The Biological Society of Washington, in 1956, in volume 69, pages 127-134
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Published in Proceedings of The Biological Society of Washington, in 1962, in volume 75, pages 199-203
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Published in American Fern Journal, in 1915, in volume 5, pages 113-118
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Published in The Wilson Bulletin, in 1914, in volume 26, issue 2, pages 86-101
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Published in Entomologist's Record and Journal of Variation, in 1977, in volume 89, issue 11, pages 299-304
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Published in Proceedings of The American Philosophical Society, in 1895, in volume 34, issue 149, pages 393-396
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Published in Transactions of The American Microscopical Society, in 1897, in volume 18, pages 282-286
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Published in Quarterly journal of microscopical science, in 1916, in volume 62, issue 245, pages 95-114
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Published in Zoologica, in 1968, in volume 53, issue 6, pages 75-84
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Published in The Wilson Bulletin, in 1912, in volume 24, issue 3, pages 117-125
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Published in Proceedings of The United States National Museum, in 1932, in volume 80, pages 1-60
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Published in The Auk, in 1904, in volume 21, pages 91-92
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Published in Texas Tech University Museum Special Publications, in 1984, in volume 21, pages 1-50
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Published in Proceedings of The Biological Society of Washington, in 1944, in volume 57, pages 11-13
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Published in Proceedings of The Biological Society of Washington, in 1956, in volume 69, pages 1-10
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Published in Proceedings of the United States National Museum, in 1954, in volume 103, issue 3325, pages 357-384
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