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Published in Proceedings of The United States National Museum, in 1917, in volume 52, pages 385-391
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Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 381-384
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Published in Asa Gray correspondence. Senders Li-Ly, 1839-1891 (inclusive), in 1863, pages 1-2
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Published in Asa Gray correspondence. Senders Co-Cu, 1826-1891 (inclusive), in 1884, pages 1-2
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Published in Asa Gray correspondence. Senders Co-Cu, 1826-1891 (inclusive), in 1884, pages 1-2
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Published in Rhodora, in 1981, in volume 83, issue 835, pages 474
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Published in Biol Bull, in 1957, in volume 112, pages 371-376
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Published in Proceedings of the United States National Museum, in 1914, in volume 47, pages 117-129
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Published in Biol Bull, in 1903, in volume 4, pages 66-95
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Published in Biol Bull, in 1983, in volume 165, pages 473-486
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Published in Transactions of The American Microscopical Society, in 1898, in volume 20, pages 29-40
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