Published in Botanical Gazette, in 1892, in volume 17, issue 3, pages 78-81

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Published in Sida, Contributions To Botany, in 1993, in volume 15, pages 619-622

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Published in Asa Gray correspondence. Senders A, in 1889, pages 1

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Published in Rhodora, in 2003, in volume 105, issue 921, pages 92-93

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Published in Biol Bull, in 1994, in volume 187, pages 200-207

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Published in Botanical Gazette, in 1887, in volume 12, issue 8, pages 192

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Published in Palaeontology, in 1964, in volume 7, issue 1, pages 85-104

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Published in Rhodora, in 1940, in volume 42, issue 500, pages 280

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Published in Transactions of The San Diego Society of Natural History, in 1976, in volume 18, pages 155-168

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Published in Rhodora, in 1934, in volume 36, issue 429, pages 344-346

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Published in Rhodora, in 1932, in volume 34, issue 397, pages 1-4

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Published in Botanical Gazette, in 1887, in volume 12, issue 3, pages 65-66

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Published in Madroño, in 1970, in volume 20, issue 5, pages 288

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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 Journal of Raptor Research, in 1993, in volume 27, issue 4, pages 203-209

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Published in The Wilson Bulletin, in 1982, in volume 94, issue 2, pages 129-138

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Published in Madroño, in 2005, in volume 52, pages 270-271

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Published in Novon, in 2006, in volume 16, pages 168-204

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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 Botanical Gazette, in 1889, in volume 14, issue 7, pages 180-181

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Published in Botanical Gazette, in 1890, in volume 15, issue 11, pages 299-304

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Published in Journal of Raptor Research, in 2001, in volume 35, issue 4, pages 337-343

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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 Scopus, in 1993, in volume 17, pages 63-64

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Published in Palaeontology, in 1964, in volume 7, issue 1, pages 72-84

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Published in Journal of The Arnold Arboretum, in 1934, in volume 15, issue 1, pages 28-42

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Published in Botanical Gazette, in 1891, in volume 16, issue 2, pages 45-49

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Published in Contributions in Science, in 1989, in volume 402, pages 1-43

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Published in Journal of The Arnold Arboretum, in 1932, in volume 13, issue 2, pages 213-231

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Published in Torreya, in 1936, in volume 36, issue 6, pages 150-156

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Published in Proceedings of The Linnean Society of New South Wales, in 1960, in volume 85, pages 105-106

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Published in Quart Florida Acad Sci, in 1964, in volume 27, pages 299-306

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Published in Quart J Florida Acad Sci, in 1964, in volume 27, pages 31-54

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Published in Bulletin of The African Bird Club, in 2011, in volume 18, issue 1, pages 83-85

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Published in The Coleopterists Bulletin, in 1956, in volume 10, issue 6, pages 81-85

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Published in Journal of the Malacological Society of Australia, in 1960, in volume 1, issue 4, pages 16-29

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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 Rhodora, in 1998, in volume 100, issue 901, pages 1-24

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Published in Phytoneuron, in 2013, in volume 2013-35, pages 1-3

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Published in Proceedings of The Biological Society of Washington, in 1989, in volume 102, pages 1001-1017

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Published in The Coleopterists Bulletin, in 1964, in volume 18, issue 1, pages 21-24

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Published in Sida, Contributions To Botany, in 2002, in volume 20, pages 189-204

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Published in Phytologia, in 1979, in volume 42, issue 4, pages 380-382

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Published in Raptor Research, in 1981, in volume 15, issue 2, pages 42-45

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Published in Entomological News, in 1981, in volume 92, pages 69-74

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Published in Nautilis, in 1912, in volume 26, pages 83-84

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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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