Published in Annals of the Missouri Botanical Garden, in 1954, in volume 41, pages 329-338
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Published in Biol Bull, in 1983, in volume 165, pages 110-118
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Published in Asa Gray correspondence. Senders A, in 1837, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1837, pages 1-3
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Published in Annals of the Missouri Botanical Garden, in 1954, in volume 41, pages 395-418
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Published in Acta Botánica Mexicana, in 2006, in volume 74, pages 179-183
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Published in Journal of Mammalogy, in 1921, in volume 2, pages 32-35
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Published in Asa Gray correspondence. Senders A, in 1864, pages 1
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Published in Asa Gray correspondence. Senders A, in 1866, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1873, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1876, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1877, pages 1-4
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Published in Asa Gray correspondence. Senders A, in 1873, pages 1-2
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Published in Asa Gray correspondence. Senders A, in 1875, pages 1-2
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Published in Palaeontology, in 1998, in volume 41, issue 3, pages 387-421
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Published in Novon, in 2006, in volume 16, pages 168-204
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Published in Asa Gray correspondence. Senders A, in 1888, pages 1-3
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Published in Asa Gray correspondence. Senders A, in 1889, pages 1
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Published in Madroño, in 2005, in volume 52, pages 270-271
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Published in Entomological News, in 2004, in volume 115, pages 55-57
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Published in Raptor Research, in 1982, in volume 16, issue 4, pages 132-134
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Published in Postilla, in 1999, in volume 220, pages 1-10
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Published in Veliger, in 1973, in volume 16, pages 121-122
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Published in Rhodora, in 1940, in volume 42, issue 500, pages 280
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Published in Memoirs of the Queensland Museum, in 1997, in volume 42, pages 326
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Published in Rhodora, in 1999, in volume 101, issue 907, pages 264-273
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Published in Mémoires du Muséum National d'Histoire Naturelle. Série A, Zoologie, in 1982, in volume 123, issue 1, pages 129-133
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Published in Contributions from the University of Michigan Herbarium, in 1975, in volume 11, issue 2, pages 41-50
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Published in The Wilson Bulletin, in 1994, in volume 106, issue 3, pages 537-548
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Published in Journal of The Adelaide Botanic Garden, in 1980, in volume 2, issue 2, pages 139-149
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Published in Rhodora, in 1932, in volume 34, issue 397, pages 1-4
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Published in Journal of Raptor Research, in 2002, in volume 36, issue 1, pages 39-44
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Published in Records of The Indian Museum, in 1918, in volume 15, pages 105-107
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Published in The Great Basin Naturalist, in 1994, in volume 54, issue 2, pages 142-149
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Published in Bulletin of The African Bird Club, in 2010, in volume 17, issue 2, pages 225-228
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Published in Proceedings of The Linnean Society of New South Wales, in 1934, in volume 59, pages 270-272
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Published in Phytoneuron, in 2013, in volume 2013-35, pages 1-3
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Published in American Fern Journal, in 1931, in volume 21, pages 11-20
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Published in American Fern Journal, in 1931, in volume 21, pages 64-71
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Published in Proc. Calif. Acad. Sci., in 1969, in volume 36, pages 279-315
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Published in Entomological News, in 1981, in volume 92, pages 69-74
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Published in The Coleopterists Bulletin, in 1979, in volume 33, issue 1, pages 61-67
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Published in Rhodora, in 1994, in volume 96, issue 885, pages 97-101
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Published in BULL BROOKLYN ENT SOC, in 1961, in volume 56, issue 4, pages 100-102
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Published in Rhodora, in 1934, in volume 36, issue 429, pages 344-346
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Published in Phytologia, in 1980, in volume 45, pages 63-66
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Published in Novon, in 1997, in volume 7, pages 9-12
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Published in Journal of Raptor Research, in 1989, in volume 23, issue 4, pages 157-161
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