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Published in Biol Bull, in 1964, in volume 126, pages 291-301

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Published in The Wilson Bulletin, in 1913, in volume 25, issue 2, pages 90-91

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Published in Botanical Gazette, in 1887, in volume 12, issue 11, pages 276

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Published in The Wilson Bulletin, in 1940, in volume 52, issue 3, pages 198-206

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Published in Museum Senckenbergianum, in 1839, in volume 3, issue 1, pages 1-44

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Published in Breviora, in 1996, in volume 506, pages 1-15

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Published in Bulletin du Museum national d'histoire naturelle, in 1945, in volume 17, issue 3, pages 230-233

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Published in Annals of Tropical Medicine & Parasitology, in 1923, in volume 17, issue 3, pages 439-441

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Published in Entomological News, in 1907, in volume 18, pages 189-194

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Published in Nautilis, in 1922, in volume 36, pages 28-30

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Published in Adansonia, in 1975, in volume 15, issue 3, pages 391-396

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Published in The Wilson Bulletin, in 1926, in volume 38, issue 1, pages 43-44

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Published in Biol Bull, in 1959, in volume 117, pages 275-283

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Published in Annals And Magazine of Natural History, in 1907, in volume 20, pages 52-55

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Published in Cryptogamie. Algologie, in 1981, in volume 2, issue 2, pages 83

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Published in American Fern Journal, in 2001, in volume 91, pages 179-186

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Published in Breviora, in 1969, in volume 327, pages 1-19

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Published in Raptor Research, in 1986, in volume 20, issue 2, pages 75-76

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Published in Asa Gray correspondence. Senders A, in 1876, pages 1-2

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Published in Asa Gray correspondence. Senders A, in 1890, pages 1

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