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Published in Rhodora, in 1934, in volume 36, issue 430, pages 372-375

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Published in Sida, Contributions To Botany, in 2003, in volume 20, issue 3, pages 1335-1338

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Published in The Great Basin Naturalist, in 1992, in volume 52, issue 2, pages 131-138

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Published in Bulletin of the British Ornithologists' Club, in 1992, in volume 122A, pages 11-38

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Published in Journal of Arachnology, in 1982, in volume 10, issue 3, pages 251-260

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Published in Bulletin of The African Bird Club, in 2009, in volume 16, issue 2, pages 211-212

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Published in Nemouria, in 1970, in volume 1, pages 1-14

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Published in The Wilson Bulletin, in 1951, in volume 63, issue 1, pages 59-60

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Published in The Great Basin Naturalist, in 1946, in volume 7, pages 29

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Published in Botanical Gazette, in 1915, in volume 60, issue 1, pages 55-65

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Published in Botanical Gazette, in 1921, in volume 71, issue 1, pages 32-60

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Published in The Wilson Bulletin, in 1943, in volume 55, issue 3, pages 164-177

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Published in Torreya, in 1925, in volume 25, issue 1, pages 15-16

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Published in The Wilson Bulletin, in 2004, in volume 116, issue 4, pages 295-303

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Published in Palaeontology, in 1965, in volume 8, issue 1, pages 82-106

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Published in Western Australian Naturalist, in 1964, in volume 9, issue 4, pages 90-91

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Published in Annals of the Entomological Society of America, in 1910, in volume 3, issue 3, pages 186-203

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Published in American Fern Journal, in 2007, in volume 97, pages 230-233

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Published in The Wilson Bulletin, in 1949, in volume 61, issue 1, pages 52-54

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Published in The Wilson Bulletin, in 1949, in volume 61, issue 2, pages 117-119

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Published in Palaeontology, in 1959, in volume 1, issue 4, pages 292-297

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Published in Journal of The Washington Academy of Sciences, in 1925, in volume 15, pages 136-137

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Published in American Fern Journal, in 1995, in volume 85, pages 89-94

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Published in Palaeontology, in 1998, in volume 41, issue 6, pages 1183-1194

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Published in Journal of Raptor Research, in 1996, in volume 30, issue 1, pages 15-20

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Published in The Auk, in 1895, in volume 12, pages 173-174

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Published in Nautilis, in 1890, in volume 4, pages 20-22

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