Published in Journal of The Washington Academy of Sciences, in 1971, in volume 61, pages 239-246
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Published in Torreya, in 1940, in volume 40, issue 4, pages 127-134
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Published in Botanical Gazette, in 1913, in volume 56, issue 4, pages 346
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Published in American Fern Journal, in 1942, in volume 32, pages 127-138
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Published in Torreya, in 1945, in volume 44, issue 3, pages 59-60
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Published in Journal of The Washington Academy of Sciences, in 1951, in volume 41, pages 159-167
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Published in Rhodora, in 1968, in volume 70, issue 784, pages 462-466
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Published in Rhodora, in 1972, in volume 74, issue 800, pages 516-518
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Published in Torreya, in 1941, in volume 41, issue 3, pages 102-104
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Published in Torreya, in 1941, in volume 41, issue 4, pages 123-134
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Published in Torreya, in 1942, in volume 42, issue 1, pages 25-32
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Published in Jour Washington Acad Sci, in 1947, in volume 37, pages 293-296
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Published in Botanical Gazette, in 1919, in volume 67, issue 6, pages 449-468
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Published in Entomological News, in 1975, in volume 86, pages 37-44
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Published in Torreya, in 1940, in volume 40, issue 3, pages 85-86
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Published in The Wilson Bulletin, in 1966, in volume 78, issue 1, pages 133
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Published in Journal of The New York Entomological Society, in 1940, in volume 48, issue 1, pages 32
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Published in Madroño, in 1943, in volume 7, issue 3, pages 85-91
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Published in Veliger, in 1973, in volume 16, pages 58-60
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Published in Torreya, in 1935, in volume 35, issue 2, pages 44-47
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Published in Botanical Gazette, in 1914, in volume 58, issue 1, pages 36-60
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Published in Torreya, in 1941, in volume 41, issue 4, pages 135-142
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Published in Veliger, in 1968, in volume 11, pages 98-99
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Published in Sida, Contributions To Botany, in 1975, in volume 6, issue 2, pages 63-66
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Published in Biol Bull, in 1956, in volume 111, pages 358-363
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Published in Madroño, in 1947, in volume 9, issue 1, pages 25-30
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Published in Torreya, in 1933, in volume 33, issue 1, pages 1-3
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Published in Torreya, in 1936, in volume 36, issue 1, pages 1-2
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Published in Proceedings of the Entomological Society of Washington, in 1996, in volume 98, pages 100-108
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Published in Pan-Pacific Entomologist, in 1983, in volume 58, issue 4, pages 262-277
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Published in Biol Bull, in 1973, in volume 145, pages 210-222
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Published in Entomological News, in 1952, in volume 63, pages 265-267
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Published in Veliger, in 1971, in volume 13, pages 316-318
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Published in Torreya, in 1937, in volume 37, issue 4, pages 83-84
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Published in The Auk, in 1901, in volume 18, pages 355-370
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