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Published in Phytologia, in 1973, in volume 27, issue 1, pages 1-6
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Published in American Fern Journal, in 1925, in volume 15, pages 69-80
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Published in American Fern Journal, in 1925, in volume 15, pages 107-117
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Published in Asa Gray correspondence. Senders B-Ba, in 1880, pages 1-2
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Published in Rhodora, in 1984, in volume 86, issue 848, pages 439-444
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Published in Proceedings of The Biological Society of Washington, in 1943, in volume 56, pages 53-56
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Published in Phytologia, in 1974, in volume 28, issue 5, pages 479-490
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Published in Madroño, in 1940, in volume 5, issue 5, pages 173-174
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Treehoppers (Homoptera, Membracidae) Collected At Multiple Levels In A Deciduous Woodlot In Delaware
Published in Entomological News, in 1981, in volume 92, pages 64-68
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Published in Proceedings of The Biological Society of Washington, in 1937, in volume 50, pages 15-16
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Published in Proceedings of The Biological Society of Washington, in 1939, in volume 52, pages 17-18
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Published in Proceedings of The Biological Society of Washington, in 1939, in volume 52, pages 163-164
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Published in Proceedings of The Zoological Society of London, in 1923, in volume 1923, pages 19-40
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Published in Journal of The Washington Academy of Sciences, in 1940, in volume 30, issue 2, pages 501-504
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Published in The Auk, in 1884, in volume 1, pages 166-173
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Published in Journal of The New York Entomological Society, in 1964, in volume 72, issue 1, pages 19-23
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Published in Annals and Magazine of Natural History, in 1923, in volume 11, issue 64, pages 465-472
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Published in Madroño, in 1936, in volume 3, issue 5, pages 221-222
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Published in Madroño, in 1943, in volume 7, issue 2, pages 33-35
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Published in Madroño, in 1943, in volume 7, issue 3, pages 91-93
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Published in Madroño, in 1947, in volume 9, issue 2, pages 61-64
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Published in Madroño, in 1938, in volume 4, issue 6, pages 187-188
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Published in Madroño, in 1938, in volume 4, issue 8, pages 290
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Published in The Coleopterists Bulletin, in 1949, in volume 3, issue 2, pages 21-22
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Published in Proceedings of the Entomological Society of Washington, in 1968, in volume 70, issue 2, pages 150-153
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Published in The Wilson Bulletin, in 1990, in volume 102, issue 2, pages 292-299
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Published in Biological Bulletin, in 1902, in volume 3, pages 16-26
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Published in Rhodora, in 1962, in volume 64, issue 758, pages 113-117
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Published in Genera insectorum, in 1927, in volume 185, pages 1-434
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Published in Madroño, in 1931, in volume 2, issue 2, pages 23
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Published in Torreya, in 1945, in volume 45, issue 1, pages 17-21
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