Published in Transactions of the American Philosophical Society, in 1793, in volume 3, pages 325-326
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Published in Nautilis, in 1927, in volume 41, pages 65-69
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Published in Ibis, in 1896, in volume 2, issue 2, pages 185-198
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Published in Rhodora, in 1925, in volume 27, issue 315, pages 51
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Published in Madroño, in 1963, in volume 17, issue 4, pages 144
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Published in Rhodora, in 1962, in volume 64, issue 759, pages 195-200
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Published in Ibis, in 1903, in volume 3, issue 2, pages 148-178
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Published in Ibis, in 1903, in volume 3, issue 1, pages 49-81
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Published in Ibis, in 1902, in volume 2, issue 4, pages 531-566
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Published in Ibis, in 1902, in volume 2, issue 3, pages 470-490
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Published in The Wilson Bulletin, in 1931, in volume 43, issue 1, pages 66-89
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Published in The Wilson Bulletin, in 1932, in volume 44, issue 1, pages 50-64
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Published in The Wilson Bulletin, in 1930, in volume 42, issue 1, pages 68-80
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Published in Ibis, in 1899, in volume 5, issue 3, pages 344-351
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Published in Nautilis, in 1927, in volume 40, pages 129-130
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Published in Ibis, in 1901, in volume 1, issue 4, pages 597-607
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Published in Ibis, in 1899, in volume 5, issue 1, pages 4-9
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Published in Journal of The Arnold Arboretum, in 1962, in volume 43, issue 4, pages 351-358
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Published in Entomologist's Record and Journal of Variation, in 1979, in volume 91, issue 11-12, pages 311-314
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Published in Phytologia, in 1997, in volume 82, pages 370-383
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Published in Great Basin Naturalist, in 1979, in volume 39, pages 293-350
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Published in Phytologia, in 1976, in volume 33, issue 6, pages 411-413
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Published in Phytologia, in 1976, in volume 34, issue 3, pages 234
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Published in Rhodora, in 1925, in volume 27, issue 323, pages 189-190
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Published in Virginia Journal of Science NS, in 1965, in volume 16, pages 165-168
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Published in Biol Bull, in 2001, in volume 200, pages 235-242
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Published in Journal of South African botany, in 1958, in volume 24, pages 107-118
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Published in Annals And Magazine of Natural History, in 1864, in volume 13, pages 117-119
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Published in Proceedings of The American Philosophical Society, in 1894, in volume 33, issue 144, pages 74-83
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Published in Journal of South African Botany, in 1778, in volume 25, pages 83-92
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Published in Annals And Magazine of Natural History, in 1857, in volume 20, pages 529
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Published in The Great Basin Naturalist, in 1972, in volume 32, pages 117-119
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Published in Madroño, in 2020, in volume 67, issue 2, pages 85-104
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Published in Great Basin Naturalist, in 1961, in volume 21, pages 27-28
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Published in Entomologist's Record and Journal of Variation, in 1978, in volume 90, issue 9, pages 248
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Published in Journal of Arachnology, in 2010, in volume 38, issue 1, pages 150-152
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Published in Palaeontology, in 1981, in volume 24, issue 2, pages 437-441
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Published in Palaeontology, in 1982, in volume 25, issue 1, pages 145-166
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Published in The Great Basin Naturalist, in 1968, in volume 28, pages 195-198
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Published in Ibis, in 1897, in volume 3, issue 4, pages 554-562
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Published in Entomologist's Record London, in 1934, in volume 46, pages 44-45
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Published in Pacific Science, in 1966, in volume 20, issue 4, pages 518-520
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Published in Great Basin Naturalist, in 1974, in volume 34, pages 161-166
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Published in Occasional papers on mollusks, in 1949, in volume 1, issue 14, pages 213-231
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Published in Proceedings of The Biological Society of Washington, in 1986, in volume 99, pages 399-405
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Published in Journal of Arachnology, in 2007, in volume 35, issue 3, pages 530-534
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Published in The Great Basin Naturalist, in 1969, in volume 29, pages 28-30
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Published in Entomologist's Record London, in 1931, in volume 43, pages 14-15
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Published in Entomologist's Record and Journal of Variation, in 1977, in volume 89, issue 1, pages 22-23
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Published in Proceedings of The Biological Society of Washington, in 1966, in volume 79, pages 13-15
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