Published in American Fern Journal, in 2006, in volume 96, pages 1-20
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1884, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1885, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1885, pages 1
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1884, pages 1-2
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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1884, pages 1-2
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Published in Asa Gray correspondence. Senders Be-Bo, pages 1
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Published in Palaeontology, in 1991, in volume 34, issue 1, pages 149-168
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Published in The Wilson Bulletin, in 1934, in volume 46, issue 3, pages 169-196
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Published in Asa Gray correspondence. Senders B-Ba, in 1878, pages 1-2
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Published in Journal of Arachnology, in 1987, in volume 15, issue 1, pages 1-9
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Published in Rhodora, in 1960, in volume 62, issue 741, pages 245-250
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Published in Entomologist's Record and Journal of Variation, in 1979, in volume 91, issue 1, pages 15
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Published in Journal of Arachnology, in 1992, in volume 20, issue 3, pages 25-34
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Published in Sida, Contributions To Botany, in 2001, in volume 19, issue 4, pages 1181-1182
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Published in Madroño, in 1961, in volume 16, issue 1, pages 31-32
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Published in Annals And Magazine of Natural History, in 1922, in volume 10, issue 59, pages 517-530
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Published in Psyche: A Journal of Entomology, in 1986, in volume 93, issue 1-2, pages 117-119
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Published in Annals of the Missouri Botanical Garden, in 1992, in volume 79, pages 29-45
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Published in NAUTILUS, in 2016, in volume 130, issue 3, pages 134-136
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Published in Proceedings of The American Philosophical Society, in 1914, in volume 53, issue 215, pages 257-262
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Published in The Wilson Bulletin, in 1979, in volume 91, issue 4, pages 533-550
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Published in Entomologist's Record and Journal of Variation, in 1988, in volume 100, issue 2-3, pages 75-76
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Published in The Wilson Bulletin, in 1929, in volume 41, issue 4, pages 228-235
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Published in The Wilson Bulletin, in 1961, in volume 73, issue 2, pages 126-139
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Published in Torreya, in 1902, in volume 2, issue 3, pages 43-45
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Published in Annals of the Missouri Botanical Garden, in 1989, in volume 76, pages 351-352
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Published in Annals of the Missouri Botanical Garden, in 1997, in volume 84, pages 103-111
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Published in Psyche: A Journal of Entomology, in 1927, in volume 34, issue 1, pages 42-46
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Published in Pan-Pacific Entomologist, in 2002, in volume 78, issue 4, pages 230-234
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Published in Zeitschrift für Säugetierkunde, in 1966, in volume 31, pages 52-56
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Published in Journal of Arachnology, in 1986, in volume 14, issue 3, pages 339-356
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Published in Journal of Arachnology, in 2013, in volume 41, issue 1, pages 70-75
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Published in Bulletin of The British Museum (Natural History) Zoology, in 1966, in volume 14, pages 81-106
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Published in Proceedings of The American Philosophical Society, in 1895, in volume 34, issue 149, pages 361-364
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Published in Psyche: A Journal of Entomology, in 1972, in volume 79, issue 3, pages 209-212
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Published in Psyche: A Journal of Entomology, in 1988, in volume 95, issue 1-2, pages 115-122
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Published in Journal of Arachnology, in 2010, in volume 38, issue 3, pages 407-414
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