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Published in Bulletin of The British Ornithologists' Club, in 1992, in volume 112, pages 247-250

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Published in Asa Gray correspondence. Senders Br-Bz, in 1890, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1891, pages 1-2

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Published in Asa Gray correspondence. Senders Br-Bz, in 1889, pages 1-2

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Published in Carnivorous plant newsletter, in 1994, in volume 23, issue 2, pages 42-43

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Published in The Auk, in 1886, in volume 3, pages 277-278

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Published in The Wilson Bulletin, in 1999, in volume 111, issue 4, pages 488-493

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Published in Nautilus, in 2011, in volume 125, issue 2, pages 83-85

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Published in Journal of The Bombay Natural History Society, in 1968, in volume 65, issue 3, pages 779-780

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Published in Phytologia, in 2015, in volume 97, issue 1, pages 32-44

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Published in Kirtlandia, in 1999, in volume 51, pages 67-82

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Published in Proceedings of the Academy of Natural Sciences of Philadelphia, in 1904, in volume 56, pages 157-179

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