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Published in Journal of The New York Entomological Society, in 1950, in volume 58, issue 2, pages 87
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Published in Biol Bull, in 1958, in volume 115, pages 64-73
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Published in The Wilson Bulletin, in 1921, in volume 33, issue 3, pages 159
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Published in Biol Bull, in 1970, in volume 138, pages 47-55
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Published in Sida, Contributions To Botany, in 1964, in volume 1, issue 5, pages 296-298
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Published in Western Australian Naturalist, in 1984, in volume 16, issue 1, pages 21
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Published in Rhodora, in 1905, in volume 7, issue 84, pages 269
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Published in Madroño, in 1946, in volume 8, issue 6, pages 193-195
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Published in Ibis, in 1869, in volume 5, issue 2, pages 170-186
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Published in Proceedings of The United States National Museum, in 1896, in volume 18, pages 633-648
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Published in Journal of The Arnold Arboretum, in 1982, in volume 63, issue 1, pages 63-81
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Published in Biol Bull, in 1942, in volume 82, pages 138-153
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Published in The Great Basin Naturalist, in 1984, in volume 44, pages 447-449
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Published in Rhodora, in 1959, in volume 61, issue 725, pages 127-136
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Published in The Auk, in 1903, in volume 20, pages 64
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Published in Canadian Entomologist, in 1888, in volume 20, pages 191-195
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Published in Phytologia, in 1988, in volume 65, issue 4, pages 285-289
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Published in Madroño, in 1950, in volume 10, issue 5, pages 142-155
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Published in Madroño, in 1950, in volume 10, issue 8, pages 225-250
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Published in Madroño, in 1965, in volume 18, issue 4, pages 128
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