Published in Botanical Gazette, in 1919, in volume 68, issue 2, pages 73-108
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Published in Jour Washington Acad Sci, in 1941, in volume 31, pages 173-179
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Published in Jour Washington Acad Sci, in 1950, in volume 40, pages 273-277
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Published in Proceedings of The United States National Museum, in 1911, in volume 41, pages 209-224
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Published in Journal of The Washington Academy of Sciences, in 1927, in volume 17, pages 390-394
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Published in Journal of The Washington Academy of Sciences, in 1934, in volume 24, pages 404-408
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Published in Proceedings of the United States National Museum, in 1927, in volume 69, issue 2640, pages 1-42
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Published in United States National Museum Bulletin, in 1923, in volume 125, pages 1-302
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Published in United States National Museum Bulletin, in 1933, in volume 165, pages 1-108
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Published in Proceedings of The United States National Museum, in 1941, in volume 91, pages 91-102
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Published in Proceedings of The United States National Museum, in 1911, in volume 39, pages 497-527
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Published in Proceedings of The United States National Museum, in 1922, in volume 61, pages 1-160
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Published in Journal of The Washington Academy of Sciences, in 1936, in volume 26, issue 4, pages 156-162
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Published in Journal of The Washington Academy of Sciences, in 1952, in volume 42, pages 381-385
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Published in Proceedings of the United States National Museum, in 1930, in volume 76, pages 1-78
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Published in United States National Museum Bulletin, in 1917, in volume 96, pages 1-87
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Published in Proceedings of The United States National Museum, in 1913, in volume 46, pages 57-59
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Published in Journal of The Washington Academy of Sciences, in 1941, in volume 31, pages 21-27
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Published in Proceedings of The United States National Museum, in 1908, in volume 34, pages 407-432
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Published in Journal of The Washington Academy of Sciences, in 1935, in volume 25, pages 403-409
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Published in Mitteilungen der Bayerischen Staatssammlung für Paläontologie und Histor. Geologie, in 2002, in volume 42, pages 51-74
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Published in Proceedings of The United States National Museum, in 1941, in volume 89, pages 519-522
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Published in Proceedings of The United States National Museum, in 1906, in volume 30, pages 1-66
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Published in Proceedings of The United States National Museum, in 1908, in volume 35, pages 133-154
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Published in Bulletin du Museum national d'histoire naturelle, in 1948, in volume 20, issue 2, pages 183-189
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Published in Bulletin du Museum national d'histoire naturelle, in 1948, in volume 20, issue 1, pages 115-119
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Published in Proceedings of The United States National Museum, in 1903, in volume 26, pages 565-591
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Published in Proceedings of The United States National Museum, in 1906, in volume 30, pages 149-164
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Published in Bulletin of the British Museum (Natural History). Geology., in 1985, in volume 38, issue 4, pages 359-372
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Published in Proceedings of The United States National Museum, in 1908, in volume 35, pages 277-340
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Published in Bull. Brit. Mus. Nat. Hist. (Zool.), in 1964, in volume 12, pages 1-35
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Published in Bulletin du Museum national d'histoire naturelle, in 1946, in volume 18, issue 3, pages 274-279
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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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in 1853, pages 1-2
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in 1853, pages 1-2
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in 1855, pages 1-4
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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 Erythea, in 1893, in volume 1, pages 197-206
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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 Stuttgarter Beiträge Naturkunde, in 1961, in volume 58, pages 1-13
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Published in Rhodora, in 1908, in volume 10, issue 119, pages 208
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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 Mycotaxon, in 2010, in volume 112, issue 1, pages 5-8
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Published in Phytologia, in 1977, in volume 37, pages 177-208
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