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Published in Proceedings of The Entomological Society of Washington, in 1995, in volume 97, pages 896-897
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Published in Proceedings of The Entomological Society of Washington, in 1995, in volume 97, pages 897-898
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Published in Proceedings of The Entomological Society of Washington, in 1995, in volume 97, pages 898-899
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Published in The Auk, in 1896, in volume 13, pages 285-289
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Published in Moscosoa, in 1986, in volume 4, pages 217-221
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Published in Journal of The Arnold Arboretum, in 1981, in volume 62, issue 2, pages 129-209
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Published in Journal of the Arnold Arboretum, in 1981, in volume 62, pages 63-128,
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Published in Journal of The Arnold Arboretum, in 1986, in volume 67, issue 4, pages 441-469
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Published in Journal of The Arnold Arboretum, in 1979, in volume 60, issue 4, pages 477-503
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Published in Journal of The Arnold Arboretum, in 1982, in volume 63, issue 2, pages 103-144
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Published in Sida, Contributions To Botany, in 1986, in volume 11, issue 3, pages 329-333
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Published in Sida, Contributions To Botany, in 1994, in volume 16, issue 2, pages 225-231
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Published in Phytologia, in 1985, in volume 58, issue 4, pages 233-242
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Published in Journal of the Arnold Arboretum, in 1984, in volume 65, pages 255-342
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Published in Rhodora, in 1993, in volume 95, pages 325-341
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Published in Rhodora, in 1980, in volume 82, issue 832, pages 563-578
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Published in Proceedings of The United States National Museum, in 1896, in volume 18, pages 593-603
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Published in Annals of the Missouri Botanical Garden, in 1989, in volume 76, pages 476-495
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Published in Moscosoa, in 1989, in volume 5, pages 159-185
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Published in Great Basin Naturalist, in 1971, in volume 31, pages 153-159
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Published in Annals of the Missouri Botanical Garden, in 2007, in volume 94, issue 2, pages 360-375
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Published in Entomological News, in 1979, in volume 90, pages 41-44
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