Published in The Great Basin Naturalist, in 1995, in volume 55, issue 2, pages 164-168

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Published in Gulf Research Reports, in 1973, in volume 4, issue 2, pages 214-232

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Published in Botanical Gazette, in 1914, in volume 57, issue 2, pages 163

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Published in Botanical Gazette, in 1914, in volume 58, issue 1, pages 93-95

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Published in Botanical Gazette, in 1915, in volume 60, issue 4, pages 334-335

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Published in Gulf Research Reports, in 1994, in volume 9, issue 1, pages 49-56

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Published in Botanical Gazette, in 1911, in volume 51, issue 2, pages 155-156

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Published in Botanical Gazette, in 1917, in volume 63, issue 1, pages 85

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Published in Muelleria, in 1994, in volume 8, issue 2, pages 141-149

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Published in The Wilson Bulletin, in 1996, in volume 108, issue 2, pages 385

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Published in Muelleria, in 2014, in volume 32, pages 58-71

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Published in Biol Bull, in 1969, in volume 137, pages 79-94

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Published in Biol Bull, in 1980, in volume 159, pages 337-348

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Published in Torreya, in 1914, in volume 14, issue 2, pages 32-37

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Published in Proceedings of The Biological Society of Washington, in 1969, in volume 82, pages 491-501

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Published in Proceedings of the Entomological Society of Washington, in 1989, in volume 91, pages 473-485

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Published in The Auk, in 1919, in volume 36, pages 600-601

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Published in Ibis, in 1892, in volume 4, issue 4, pages 581-582

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Published in Discovery reports, in 1936, in volume 12, pages 59-193

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Published in Nautilis, in 1923, in volume 36, pages 103-104

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1858, pages 1-3

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-3

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1-5

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1-2

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1857, pages 1-2

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1858, pages 1-3

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1855, pages 1

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1856, pages 1-3

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1854, pages 1

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Published in The Auk, in 1914, in volume 31, pages 415

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Published in Journal of Research on the Lepidoptera, in 1967, in volume 6, pages 31-42

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-2

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1857, pages 1-2

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), in 1860, pages 1-2

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Published in Phytologia, in 1984, in volume 54, issue 7, pages 479-485

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Published in Asa Gray correspondence. Senders Ca-Cl, in 1890, pages 1-2

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Published in Asa Gray correspondence. Senders E, 1838-1898 (inclusive), pages 1

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Published in Ibis, in 1860, in volume 2, issue 4, pages 428-432

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Published in Entomologische Zeitung Stettin, in 1853, in volume 14, pages 239-254

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Published in Nautilus, in 1914, in volume 28, pages 4-5

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Published in The Auk, in 1895, in volume 12, pages 259-270

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Published in Discovery Reports Cambridge, in 1930, in volume 2, pages 1-222

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Published in Palaeontology, in 1974, in volume 17, issue 4, pages 811-840

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Published in Palaeontology, in 1982, in volume 25, issue 3, pages 499-507

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Published in Nuytsia, in 1992, in volume 8, issue 2, pages 195-199

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