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Published in Entomologist's Record and Journal of Variation, in 2005, in volume 117, issue 1, pages 35-39

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Published in Bulletin of Zoological Nomenclature, in 1985, in volume 42, pages 293-295

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Published in Botanical Gazette, in 1888, in volume 13, issue 12, pages 305-311

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Published in Rhodora, in 1960, in volume 62, issue 741, pages 245-250

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Published in Journal of The Arnold Arboretum, in 1946, in volume 27, issue 4, pages 438-441

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Published in American Fern Journal, in 1917, in volume 7, pages 106-109

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Published in American Fern Journal, in 1919, in volume 9, pages 38-48

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Published in American Fern Journal, in 1978, in volume 68, pages 33-36

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Published in The Wilson Bulletin, in 1994, in volume 106, issue 1, pages 55-61

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Published in Nuytsia, in 1994, in volume 9, issue 3, pages 387-398

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Published in Biol Bull, in 1984, in volume 166, pages 277-298

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Published in Veliger, in 1966, in volume 9, pages 236-238

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Published in Phytologia, in 2009, in volume 91, issue 2, pages 92-94

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Published in American Fern Journal, in 1915, in volume 5, pages 4-7

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Published in Madroño, in 1969, in volume 20, issue 1, pages 29-30

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Published in Madroño, in 2004, in volume 51, issue 3, pages 336-337

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Published in Palaeontology, in 1979, in volume 22, issue 3, pages 537-548

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Published in Biol Bull, in 1981, in volume 160, pages 228-239

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Published in Biol Bull, in 1962, in volume 123, pages 243-252

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Published in Moscosoa, in 1983, in volume 2, pages 54-60

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