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Published in Proceedings of The American Philosophical Society, in 1882, in volume 20, issue 111, pages 227-228

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Published in Annals And Magazine of Natural History, in 1873, in volume 11, pages 45-52

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Published in Proceedings of The American Philosophical Society, in 1883, in volume 20, issue 113, pages 656-662

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Published in Transactions of The Royal Society of South Australia, in 1968, in volume 92, pages 125

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Published in Bulletin du Muséum national d'histoire naturelle, in 1929, in volume 1, issue 2, pages 157-158

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Published in Veliger, in 1975, in volume 17, pages 335-345

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Published in Asa Gray correspondence. Senders Ca-Cl, in 1859, pages 1-2

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Published in Bulletin du Muséum national d'histoire naturelle, in 1933, in volume 5, issue 5, pages 355-359

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Published in Bulletin du Muséum national d'histoire naturelle, in 1930, in volume 2, issue 1, pages 117-130

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Published in Bulletin du Muséum national d'histoire naturelle, in 1930, in volume 2, issue 4, pages 381-392

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Published in The Wilson Bulletin, in 1979, in volume 91, issue 2, pages 177-186

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Published in Asa Gray correspondence. Senders Ca-Cl, in 1897, pages 1

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Published in Bulletin du Muséum national d'histoire naturelle, in 1930, in volume 2, issue 1, pages 92-116

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Published in American Fern Journal, in 1978, in volume 68, pages 95

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Published in John Carey letters to Asa Gray, 1837-2193, in 1856, pages 1-2

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Published in John Carey letters to Asa Gray, 1837-2199, in 1858, pages 1-2

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Published in Entomological news, in 1956, in volume 67, issue 8, pages 197-199

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Published in Rhodora, in 1914, in volume 16, issue 190, pages 184

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Published in Madroño, in 1944, in volume 7, issue 6, pages 181-184

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Published in Torreya, in 1914, in volume 14, issue 10, pages 195-197

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Published in Madroño, in 2006, in volume 53, pages 313-320

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Published in Biol Bull, in 1962, in volume 122, pages 298-309

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Published in Banisteria, in 2010, in volume 35, pages 3-10

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Published in Proceedings of The American Philosophical Society, in 1877, in volume 17, issue 100, pages 74-80

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Published in Bulletin du Muséum national d'histoire naturelle, in 1932, in volume 4, issue 5, pages 564-567

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