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Published in Bull. Mus. comp. Zool. Harvard, in 1937, in volume 80, pages 377-387

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Published in Breviora, in 1964, in volume 211, pages 1-4

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Published in Breviora, in 1953, in volume 16, pages 1-6

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Published in Torreya, in 1906, in volume 6, issue 5, pages 81-84

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Published in Madroño, in 1942, in volume 6, issue 6, pages 190-198

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Published in Madroño, in 1936, in volume 3, issue 7, pages 257-264

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Published in Breviora, in 1974, in volume 429, pages 1-22

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Published in Proceedings of The Biological Society of Washington, in 1940, in volume 53, pages 105-107

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Published in Revue Suisse De Zoologie, in 1990, in volume 97, pages 877-885

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Published in Proceedings of The Biological Society of Washington, in 1985, in volume 98, pages 774-777

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Published in Botanical Gazette, in 1915, in volume 60, issue 3, pages 237-240

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Published in Madroño, in 1952, in volume 11, issue 8, pages 309-310

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Published in Occasional Papers of the Boston Society of Natural History, in 1936, in volume 8, pages 269-272

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Published in Occasional Papers of the Boston Society of Natural History, in 1935, in volume 8, pages 209-218

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Published in Amphibian and reptile conservation, in 2014, in volume 8, issue 1, pages 25-32

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Published in Breviora, in 1962, in volume 164, pages 1-11

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Published in Bulletin of Zoological Nomenclature, in 1998, in volume 55, issue 1, pages 29-36

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Published in Bulletin of Zoological Nomenclature, in 1997, in volume 54, issue 4, pages 245-248

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Published in Bulletin of Zoological Nomenclature, in 1997, in volume 54, issue 1, pages 35-38

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Published in Asa Gray correspondence. Senders B-Ba, in 1885, pages 1-6

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Published in Asa Gray correspondence. Senders B-Ba, in 1886, pages 1-6

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Published in William Marriot Canby letters to Asa Gray, 1861-1895, pages 1-2

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Published in Phytologia, in 1990, in volume 68, pages 234-238

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Published in Asa Gray correspondence. Senders B-Ba, in 1891, pages 1-2

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Published in Erythea, in 1893, in volume 1, pages 145-147

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Published in Nautilus, in 1913, in volume 26, pages 109-110

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Published in Nautilis, in 1939, in volume 53, pages 8-16

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Published in Rhodora, in 1908, in volume 10, issue 119, pages 208

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Published in Stuttgarter Beiträge Naturkunde, in 1961, in volume 58, pages 1-13

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Published in Erythea, in 1893, in volume 1, pages 197-206

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Published in Entomological News, in 1987, in volume 98, pages 135-139

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Published in Proceedings of the Malacological Society of London, in 1907, in volume 7, issue 5, pages 243

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Published in Journal of The Bombay Natural History Society, in 1932, in volume 35, pages 891-893

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Published in Phytoneuron, in 2013, in volume 2013-62, pages 1

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Published in Phytologia, in 2009, in volume 91, issue 3, pages 439

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Published in Compositae Newsletter, in 1993, in volume 23, pages 1-2

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Published in Compositae Newsletter, in 1997, in volume 31, pages 1-16

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Published in Proceedings of the Malacological Society of London, in 1908, in volume 8, issue 2, pages 62-63

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Published in Proceedings of the Malacological Society of London, in 1909, in volume 8, issue 5, pages 268

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Published in Asa Gray correspondence. Senders Br-Bz, pages 1-2

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Published in Phytologia, in 1977, in volume 37, pages 177-208

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